Exhibit 4.4

THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THIS WARRANT SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT HAS BEEN PROVIDED.

Warrant No. 1 Date: March 29, 2001

WARRANT TO PURCHASE COMMON STOCK
OF
CONCURRENT COMPUTER CORPORATION

Void after 5:00 P.M. (United States Eastern Time) on March 29, 2005, unless extended as provided herein.

This certifies that, for value received, receipt and sufficiency of which are hereby acknowledged, Comcast Concurrent Holdings, Inc., or its registered assigns (the "HOLDER"), is entitled, subject to the terms and conditions set forth below, to purchase from Concurrent Computer Corporation, a Delaware corporation (the "COMPANY"), fifty thousand (50,000) (the "WARRANT NUMBER") validly issued, fully paid and nonassessable shares (the "WARRANT SHARES") of Common Stock of the Company, par value $0.01 per share (the "COMMON STOCK"), subject to adjustment as provided herein, at a purchase price equal to $5.196 per share (the "EXERCISE PRICE").

The term "WARRANT" as used herein shall mean this Warrant, and any warrants delivered in substitution or exchange therefor as provided herein.

expiration date for this Warrant shall be extended to 5:00 P.M. (United States Eastern Time) on the Business Day (as defined in Section 6(i)) following such Saturday, Sunday or recognized holiday, (b) in the event that, on the expiration date of this Warrant, the Company is then required, pursuant to an effective demand therefor under that certain Registration Rights Agreement of even date herewith between the Company and the initial Holder hereof (the "REGISTRATION RIGHTS AGREEMENT") to use its reasonable best efforts to effect, or is in the process of effecting, a registration under the Securities Act of 1933, as amended (the "SECURITIES ACT") for a public offering in which Warrant Shares are entitled to be included as provided in the Registration Rights Agreement, or if the Company is in default of any such obligations to register the sale of such Common Stock, the right to exercise this Warrant shall continue until the later of 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which such registration shall have become effective or the 30th day following the date all such defaults shall have been cured, and (c) in the event that, on the expiration date of this Warrant, the Holder and the Company are in the process of complying with the provisions of the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR ACT"), in accordance with the provisions of Section 2(d) below, the right to exercise this Warrant shall continue until 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which any waiting period under the HSR Act applicable to the exercise of the Warrant shall have expired or been terminated.

(a) This Warrant may be exercised by the Holder, in whole or in part, by (i) the surrender of this Warrant to the Company, with the Notice of Exercise annexed hereto duly completed and executed on behalf of the Holder, at the office of the Company (or such other office or agency of the Company as it may designate by notice in writing to the Holder at the address of the Holder appearing on the books of the Company) during the Exercise Period and (ii) the delivery of payment to the Company of the Exercise Price for the number of Warrant Shares specified in the Notice of Exercise in any manner specified in subsection (c) of this Section 2.

(b) The Company agrees that such Warrant Shares shall be deemed to be issued to the Holder as the record holder of such Warrant Shares as of the close of business on the date on which this Warrant shall have been surrendered and payment made for the Warrant Shares as aforesaid. A stock certificate or certificates for the Warrant Shares specified in the Notice of Exercise shall be delivered to the Holder as promptly as practicable, and in any event within ten days thereafter. If this Warrant shall have been exercised only in part, the Company shall, at the time of delivery of the stock certificate or certificates, deliver to the Holder a new Warrant evidencing the rights to purchase the remaining Warrant Shares, which new Warrant shall in all other respects be identical with this Warrant. No adjustments shall be made on Warrant Shares issuable on the exercise of this Warrant for any cash dividends paid or payable to holders of record of Common Stock prior to the date as of which the Holder shall be deemed to be the record holder of such Warrant Shares.

(c) The Exercise Price shall be payable (i) in cash or its equivalent, payable by wire transfer of immediately available funds to a bank account specified by the Company or by certified or bank cashiers' check in lawful money of the United States of America; (ii) by surrendering to the Company the right to purchase a number of Warrant Shares equal to the

product obtained by multiplying the number of Warrant Shares to be purchased (including any Warrant Shares to be surrendered) by a fraction, the numerator of which is the Exercise Price and the denominator of which is the Current Market Price (as defined in Section 6(i) below) of the Common Stock on the date of exercise of the Warrant, or (iii) in any combination of (i) or (ii). In the event the Exercise Price is to be paid, in whole or in part, in accordance with the payment method described in clause (ii), and compliance with the provisions of the HSR Act is required in accordance with subsection (d) of this Section 2 prior to the consummation of such exercise, the Current Market Price of the Common Stock shall be calculated as of the date on which the Holder notifies the Company of its decision to exercise the Warrant, pending compliance with the provisions of the HSR Act, rather than the date of the consummation of such exercise.

(d) The Holder agrees that any exercise of this Warrant is, to the extent applicable, subject to compliance with the provisions of the HSR Act. The Company agrees that, in the event that the exercise of this Warrant by the Holder requires compliance with any provisions of the HSR Act, the Company shall cooperate with the Holder in connection with any such filings by (i) making all filings required to be made on the Company's part under the HSR Act and (ii) promptly furnishing, or causing to be furnished, any information that may be required by the Federal Trade Commission or the Department of Justice under the HSR Act.

(a) In case the Company shall pay or make a dividend or other distribution on any class of capital stock of the Company in Common Stock or any other security convertible into or exchangeable for shares of Common Stock (other than any rights, options or warrants described in subsection (b) of this
Section 6), the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for determination of stockholders entitled to receive such dividend or other distribution shall be reduced by multiplying such Exercise Price by a fraction of which (i) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination and (ii) the denominator shall be the sum of (A) such number of shares referred to in clause (i) and (B) the total number of shares of Common Stock constituting such dividend or other distribution (or, in the case of a dividend or distribution of securities convertible into or exchangeable for shares of Common Stock, the total number of shares of Common Stock underlying such securities), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination. For the purposes of this subsection (a), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

(b) In case the Company shall hereafter issue rights, options or warrants to all holders of its Common Stock entitling them to subscribe for or purchase shares of Common Stock or any other security convertible into or exchangeable for shares of Common Stock (such rights, options or warrants not being available on an equivalent basis to Holders of the Warrants upon exercise) at a price per share less than the Current Market Price of the Common Stock on the date fixed for the determination of stockholders entitled to receive such rights, options or warrants (other than pursuant to a dividend reinvestment plan), (i) the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for such determination shall be reduced by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of holders of Common Stock entitled to receive such rights, options or warrants by a fraction of which (A) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock that the aggregate of the offering price of the total number of shares of Common Stock so offered for subscription or purchase would purchase at such Current Market Price and (B) the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase (or such number of shares of Common Stock underlying any convertible securities so offered for subscription or purchase), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination (for the purposes of this subsection (b), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock), and (ii) if any such rights, options or warrants expire or terminate without having been exercised or are exercised for a consideration different from that utilized in the computation of any adjustment or adjustments on account of such rights, options or warrants, the Exercise Price with respect to any Warrant not theretofore exercised shall be readjusted such that the Exercise Price would be the same as would have resulted had such adjustment been made without regard to the issuance of such expired or terminated rights, options or warrants or based

upon the actual consideration received upon exercise thereof, as the case may be, which readjustment shall become effective upon such expiration, termination or exercise, as applicable; provided, however, that all readjustments in the Exercise Price based upon any expiration, termination or exercise for a different consideration of any such right, option or warrant, in the aggregate, shall not cause the Exercise Price to exceed the Exercise Price immediately prior to the time such rights, options or warrants were initially issued (without regard to any other adjustments of such number under this subsection
(b) that may have been made since the date of the issuance of such rights, options or warrants).

(c) In case the outstanding shares of Common Stock shall be subdivided into a greater number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such subdivision becomes effective shall be proportionately reduced, and, conversely, in case the outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such combination becomes effective shall be proportionately increased.

(d) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets (including securities, but excluding any rights, options or warrants referred to in subsection (b) of this Section 6, any dividend or distribution paid exclusively in cash and any dividend referred to in subsection (a) of this
Section 6), the Exercise Price shall be adjusted so that the same shall equal the price determined by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of stockholders entitled to receive such distribution by a fraction of which (i) the numerator shall be the Current Market Price at the close of business on the date fixed for such determination less the then fair market value of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock , and (ii) the denominator shall be such Current Market Price, such adjustment to become effective immediately prior to the opening of business on the next Business Day following the date fixed for the determination of stockholders entitled to receive such distribution.

(e) The Company may make such reductions in the Exercise Price, in addition to those required by subsections (a), (b), (c) and (d) of this Section 6, as it considers to be advisable in order that any event treated for Federal income tax purposes as a dividend of stock or stock rights shall not be taxable to the recipients.

(f) In case of any reclassification, recapitalization or other change in the outstanding securities of the class issuable upon exercise of this Warrant (including any such reclassification, recapitalization or other change upon a consolidation or merger in which the Company is the continuing corporation, but not including any transactions for which an adjustment is provided in subsection (c), (d) or (g) of this Section 6), the Company shall execute and deliver to the Holder a new warrant certificate, satisfactory in form and substance to the Holder and without payment of any additional consideration therefor, providing that the Holder shall have the right thereafter, during the period such Warrant shall be outstanding, to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such reclassification, recapitalization or other change by a holder of the number of shares of

Common Stock issuable upon exercise of this Warrant had it been exercised immediately prior to such reclassification, recapitalization or other change. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (f) shall similarly apply to successive reclassifications, recapitalizations and other changes in the outstanding securities of the class issuable upon exercise of this Warrant.

(g) In case of any consolidation of the Company with, or merger of the Company into, any other entity, any merger of another entity into the Company (other than a merger that does not result in any reclassification, conversion, exchange or cancellation of outstanding shares of the Common Stock) or any sale or transfer of all or substantially all of the assets of the Company, in each case in which this Warrant remains in full force and effect, the provisions of this Warrant shall be immediately and automatically amended, without any further action on the part of the Company or the Holder, to the extent necessary to entitle the Holder to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such consolidation, merger, sale of transfer by a holder of the number of shares of Common Stock that would have otherwise been issuable upon exercise of this Warrant had it been exercised immediately prior to such consolidation, merger, sale or transfer. If the holders of the Common Stock may elect from choices the kind or amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer, then for the purpose of this Section 6, the kind and amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer shall be deemed to be the choice specified by the Holder, which specification shall be made by the Holder by the later of (i) ten Business Days after the Holder is provided with a final version of all information required by law or regulation to be furnished to holders of Common Stock concerning such choice, or, if no such information is required, ten Business Days after the Holder is provided with a final version of all information that was otherwise furnished to the holders of Common Stock concerning such choice, and (ii) the last time at which holders of Common Stock are permitted to make their specification known to the Company. If the Holder fails to make any specification, the Holder's choice shall be deemed to be whatever choice is made by a plurality of holders of Common Stock not affiliated with the Company or the other person to the merger or consolidation. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (g) shall similarly apply to successive consolidations, mergers, sales or transfers.

(h) If the Company, at any time within nine (9) months following the issuance of this Warrant and while the Warrant remains outstanding and unexpired, shall issue any Additional Shares of Common Stock (as defined below)
(otherwise than as provided in the foregoing subsections 6(a) through 6(g) above) at a price per share less, or for other consideration lower, than the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, or without consideration, then upon such issuance the Exercise Price shall be adjusted to that price determined by multiplying the Exercise Price by a fraction (i) the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to the issuance of such Additional Shares of Common Stock plus the number of shares of Common

Stock which the aggregate consideration for the total number of such Additional Shares of Common Stock so issued would purchase at the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, and (ii) the denominator of which shall be the total number of shares of Common Stock outstanding immediately after the issuance of such Additional Shares of Common Stock. No adjustment of the Exercise Price shall be made under this subsection 6(h) upon the issuance of any Additional Shares of Common Stock which are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights or pursuant to the exercise of any conversion or exchange rights in any convertible securities if any such adjustments shall previously have been made upon the issuance of any such warrants, options or other rights or upon the issuance of any such convertible securities (or upon the issuance of any warrants, options or any rights therefor) pursuant to subsections 6(i) or 6(j) hereof.

(i) In case the Company shall issue any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above, and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such warrants, options or other rights on the date of issuance of such warrants, options or other rights shall be less than the Current Market Price as of the date of issuance of such warrants, options or other rights, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable pursuant to such warrants, options or other rights shall be deemed to have been issued as of the date of issuance of such warrants, options or rights, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such warrants, options, or other rights plus the minimum consideration to be received by the Company for the issuance of Additional Shares of Common Stock pursuant to such warrants, options, or other rights. Notwithstanding any other language in this
Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock.

(j) In case the Company shall issue any securities convertible into Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such convertible securities on the date of issuance of such convertible securities shall be less than the Current Market Price as of the date of issuance of such convertible securities, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable upon the conversion or exchange of all such convertible securities shall be deemed to have been issued as of the date of issuance of such convertible securities, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such convertible securities plus the minimum consideration to be received by the Company for the issuance of such Additional Shares of Common Stock pursuant to the terms of such convertible securities. No adjustment of the Exercise Price shall be made under this subsection upon the issuance of any

convertible securities that are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights therefor, if any such adjustments shall previously have been made upon the issuance of such warrants, options or other rights pursuant to subsection 6(i) hereof. Notwithstanding any other language in this Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any securities convertible into Additional Shares of Common Stock.

(k) Whenever there shall be any change in the Exercise Price under this Section 6, then there shall be an adjustment (to the nearest thousandth) in the Warrant Number, which adjustment shall become effective at the time such change in the Exercise Price becomes effective and shall be made by multiplying the Warrant Number in effect immediately before such change in the Exercise Price by a fraction the numerator of which is the Exercise Price immediately before such change and the denominator of which is the Exercise Price immediately after such change.

(l) The following provisions will be applicable to the making of adjustments in the Exercise Price hereinabove provided in this Section 6:

Additional Shares of Common Stock or warrants, options or other rights or convertible securities a consideration equal to the amount of such dividend so paid or satisfied.

(m) For the purpose of any computation under subsection (c) of
Section 2, Section 3 or Section 6, the current market price per share of Common Stock (the "Current Market Price") on any day shall be deemed to be the closing price per share as of the earlier of the last trading day prior to the date in question or the day before the Ex Date (as defined below) with respect to the issuance, payment or distribution. For this purpose, the term "Ex Date," when used with respect to the issuance, payment or distribution, shall mean the first date on which the Common Stock trades regular way on the applicable securities exchange or in the applicable securities market without the right to receive such issuance or distribution. The closing price for each day shall be (i) as reported in the Wall Street Journal (Eastern Edition) on the Nasdaq National Market System, (ii) if the Common Stock is not listed or admitted to trading on the Nasdaq National Market System, as reported in the Wall Street Journal (Eastern Edition) on the SmallCap Market or the principal national securities exchange on which the Common Stock is listed or admitted to trading or (iii) if not listed or admitted to trading on the Nasdaq National Market System, on the SmallCap Market or on any national securities exchange, as determined in good faith by the Board of Directors of Company for that purpose. In the event that the Board of Directors of the Company determines the Current Market Price pursuant to the preceding sentence, the Holder may, at its sole discretion, cause the Company to engage external independent appraisers selected by the Holder to determine the Current Market Price, which determination shall be binding. In the event that the Current Market Price determined by such independent appraisers differs from the Current Market Price determined by the Board of Directors of the Company by five percent (5%) or more and such difference is adverse to the interests of Holder, the Company shall bear the costs and expenses related to the independent audit; otherwise, the Holder shall bear such costs and expenses.

(n) No adjustment in the Exercise Price shall be required unless such adjustment (plus any adjustments not previously made by reason of this subsection (n)) would require an increase or decrease of at least 1% in such Exercise Price; provided, however, that any adjustments that by reason of this subsection (n) are not required to be made shall be carried forward and taken into account in any subsequent adjustment. All calculations under this subsection (n) shall be made to the nearest cent or to the nearest 1/100 of a share of Common Stock, as the case may be. Notwithstanding the foregoing, any adjustment required by this subsection (n) shall be made no later than the expiration of the right to exercise the Warrant or a portion thereof.

(o) Whenever the Exercise Price and Warrant Number is adjusted as herein provided:

(i) the Company shall compute the adjusted Exercise Price and Warrant Number in accordance with Section 6 and shall prepare a certificate signed by the treasurer of the Company setting forth the adjusted Exercise Price and Warrant Number and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be filed with any transfer agent; and

(ii) a notice stating that the Exercise Price and Warrant Number have been adjusted and setting forth the adjusted Exercise Price and Warrant Number shall forthwith be required, and as soon as practicable after it is required, such notice (together with a copy of the certificate prepared under
Section 6(o)(i) hereof) shall be mailed by the Company to the Holder of the Warrant at its last address as shall appear in the Warrant Register (as defined in Section 7(a)).

(p) In case:

(i) the Company shall declare a dividend or other distribution on its Common Stock (other than a dividend payable exclusively in cash that would not cause an adjustment to the Exercise Price to take place pursuant to Section 6 above);

(ii) the Company or any of its subsidiaries shall make a tender offer for the Common Stock;

(iii) the Company shall authorize the granting to all Holders of its Common Stock of rights, options or warrants to subscribe for or purchase any shares of capital stock of any class;

(iv) of any reclassification of the Common Stock (other than a subdivision or combination of its outstanding shares of Common Stock), or of any consolidation, merger or share exchange to which the Company is a party and for which approval of any stockholders of the Company is required, or of the sale or transfer of all or substantially all of the assets of the Company; or

(v) of the voluntary of involuntary dissolution, liquidation or winding up of the Company;

then the Company shall cause to be filed with any warrant agent, and shall cause to be mailed to the Holder of this Warrant at its last address as shall appear in the Warrant Register, at least ten days prior to the effective date hereinafter specified, a notice stating (A) the date on which a record has been taken for the purpose of such dividend, distribution or grant of rights, options or warrants, or, if record is not to be taken, the date as of which the identity of the holders of Common Stock of record entitled to such dividend, distribution, rights, options or warrants is to be determined, or (B) the date on which such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up. Neither the failure to give such notice nor any defect therein shall affect the legality or validity of the proceedings described in clauses
(i) through (v) of this subsection (p).

(q) For the purpose of this Section 6,

(i) "Additional Shares of Common Stock" shall mean all shares of Common Stock issued by the Company, except:

(a) shares of Common Stock outstanding as of the date hereof;

(b) shares of Common Stock issuable upon the exercise of warrants, including this Warrant, which are outstanding on the date hereof; and

(c) shares of Common Stock (and/or options, warrants or other Common Stock purchase rights) issued or to be issued to employees, officers or directors of, or advisors to the Company, pursuant to compensation plans, agreements or other arrangements that are approved by the Company's Board of Directors.

(ii) "Common Stock" shall mean the Company's Common Stock and any other shares of capital stock of the Company of any class, or series within a class, whether now or hereafter authorized, which has the right to participate in the distribution of earnings or assets of the Company without limit as to amount or percentage.

(d) Compliance with Securities Laws.

(i) The Holder of this Warrant, by acceptance hereof, acknowledges that the transfer of this Warrant and the Warrant Shares is subject to the Holder's compliance with the provisions of the Securities Act and any applicable state securities laws in respect of any such transfer.

(ii) The certificate or certificates representing any Warrant Shares acquired upon exercise of this Warrant, and any Common Stock or other securities issued in respect of such Warrant Shares upon any stock split, stock dividend, recapitalization, merger, consolidation or similar event, shall be stamped or otherwise imprinted with the following legend (unless such a legend is no longer required under the Securities Act):

THE TRANSACTION IN WHICH THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ACQUIRED WAS NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES REPRESENTED BY THIS CERTIFICATE SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL

IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH
EFFECT HAS BEEN PROVIDED.

(iii) The Company shall not be required to register the transfer of this Warrant or the Warrant Shares on the books of the Company unless the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company that this Warrant or the Warrant Shares, as applicable, are eligible for transfer without registration under the Securities Act; provided, however, that no such opinion of counsel shall be necessary in order to effectuate a transfer of this Warrant or any of the Warrant Shares (A) in accordance with the provisions of Rule 144(k) promulgated under the Securities Act or (B) with respect to the Warrant Shares, in accordance with the intended method of disposition set forth in any registration statement filed by the Company and covering the Warrant Shares pursuant to the Registration Rights Agreement.

(iv) The conditions precedent imposed by this subsection (d) upon the transferability of this Warrant and the Warrant Shares shall cease and terminate as to this Warrant and any of the Warrant Shares (A) when such securities shall have been registered under the Securities Act and sold or otherwise disposed of in accordance with the intended method of disposition by the seller or sellers thereof set forth in the registration statement covering such securities, (B) at such time as the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company to the effect that the restrictive legend on such securities is no longer required in order to establish compliance with the provisions of the Securities Act, or (C) when such securities are transferred pursuant to Rule 144 or become transferable in accordance with the provisions of Rule 144(k) promulgated under the Securities Act. Whenever the conditions imposed by this subsection (d) shall terminate as hereinabove provided with respect to any of the Warrant Shares, the holder of any such securities bearing the legend set forth in Section 7(d)(ii) shall be entitled to receive from the Company, without expense (except for the payment of any applicable transfer taxes) and as expeditiously as possible, new stock certificates not bearing such legend.

(a) during the term of this Warrant, the Company will reserve a sufficient number of shares of authorized and unissued Common Stock to provide for the issuance of Common Stock, which shares shall be duly authorized, fully paid and non-assessable, upon the exercise of this Warrant and, from time to time, will take all steps necessary to amend its Certificate of Incorporation to provide sufficient reserves of shares of Common Stock issuable upon exercise of the Warrant;

(b) the Company will not, by amendment of its Certificate of Incorporation or through reorganization, consolidation, merger, dissolution or sale of assets, or by any other voluntary act, avoid or seek to avoid the observance or performance of any of the covenants, stipulations or conditions to be observed or performed hereunder by the Company;

(c) all shares that may be issued upon exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein, will be free from all taxes,

liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously or otherwise specified herein); and

(d) issuance of this Warrant by the Company shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock upon the exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein.

IN WITNESS WHEREOF, CONCURRENT COMPUTER CORPORATION has caused this Warrant

to be executed by its authorized officer.

Dated: March 29, 2001

CONCURRENT COMPUTER CORPORATION

By: /s/ Steven R. Norton
   ------------------------------------
Name: Steven R. Norton
      ---------------------------------

Title: Executive Vice President and CFO
       --------------------------------

Exhibit 4.5

THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THIS WARRANT SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT HAS BEEN PROVIDED.

Warrant No. 2 Date: October 9, 2001

WARRANT TO PURCHASE COMMON STOCK
OF
CONCURRENT COMPUTER CORPORATION

Void after 5:00 P.M. (United States Eastern Time) on October 9, 2005, unless extended as provided herein.

This certifies that, for value received, receipt and sufficiency of which are hereby acknowledged, Comcast Concurrent Holdings, Inc., or its registered assigns (the "HOLDER"), is entitled, subject to the terms and conditions set forth below, to purchase from Concurrent Computer Corporation, a Delaware corporation (the "COMPANY"), four thousand four hundred and thirty one (4,431) (the "WARRANT NUMBER") validly issued, fully paid and nonassessable shares (the "WARRANT SHARES") of Common Stock of the Company, par value $0.01 per share (the "COMMON STOCK"), subject to adjustment as provided herein, at a purchase price equal to $6.251 per share (the "EXERCISE PRICE").

The term "Warrant" as used herein shall mean this Warrant, and any warrants delivered in substitution or exchange therefor as provided herein.

expiration date for this Warrant shall be extended to 5:00 P.M. (United States Eastern Time) on the Business Day (as defined in Section 6(i)) following such Saturday, Sunday or recognized holiday, (b) in the event that, on the expiration date of this Warrant, the Company is then required, pursuant to an effective demand therefor under that certain Registration Rights Agreement of even date herewith between the Company and the initial Holder hereof (the "REGISTRATION RIGHTS AGREEMENT") to use its reasonable best efforts to effect, or is in the process of effecting, a registration under the Securities Act of 1933, as amended (the "SECURITIES ACT") for a public offering in which Warrant Shares are entitled to be included as provided in the Registration Rights Agreement, or if the Company is in default of any such obligations to register the sale of such Common Stock, the right to exercise this Warrant shall continue until the later of 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which such registration shall have become effective or the 30th day following the date all such defaults shall have been cured, and (c) in the event that, on the expiration date of this Warrant, the Holder and the Company are in the process of complying with the provisions of the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR ACT"), in accordance with the provisions of Section 2(d) below, the right to exercise this Warrant shall continue until 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which any waiting period under the HSR Act applicable to the exercise of the Warrant shall have expired or been terminated.

(a) This Warrant may be exercised by the Holder, in whole or in part, by (i) the surrender of this Warrant to the Company, with the Notice of Exercise annexed hereto duly completed and executed on behalf of the Holder, at the office of the Company (or such other office or agency of the Company as it may designate by notice in writing to the Holder at the address of the Holder appearing on the books of the Company) during the Exercise Period and (ii) the delivery of payment to the Company of the Exercise Price for the number of Warrant Shares specified in the Notice of Exercise in any manner specified in subsection (c) of this Section 2.

(b) The Company agrees that such Warrant Shares shall be deemed to be issued to the Holder as the record holder of such Warrant Shares as of the close of business on the date on which this Warrant shall have been surrendered and payment made for the Warrant Shares as aforesaid. A stock certificate or certificates for the Warrant Shares specified in the Notice of Exercise shall be delivered to the Holder as promptly as practicable, and in any event within ten days thereafter. If this Warrant shall have been exercised only in part, the Company shall, at the time of delivery of the stock certificate or certificates, deliver to the Holder a new Warrant evidencing the rights to purchase the remaining Warrant Shares, which new Warrant shall in all other respects be identical with this Warrant. No adjustments shall be made on Warrant Shares issuable on the exercise of this Warrant for any cash dividends paid or payable to holders of record of Common Stock prior to the date as of which the Holder shall be deemed to be the record holder of such Warrant Shares.

(c) The Exercise Price shall be payable (i) in cash or its equivalent, payable by wire transfer of immediately available funds to a bank account specified by the Company or by certified or bank cashiers' check in lawful money of the United States of America; (ii) by surrendering to the Company the right to purchase a number of Warrant Shares equal to the

product obtained by multiplying the number of Warrant Shares to be purchased (including any Warrant Shares to be surrendered) by a fraction, the numerator of which is the Exercise Price and the denominator of which is the Current Market Price (as defined in Section 6(i) below) of the Common Stock on the date of exercise of the Warrant, or (iii) in any combination of (i) or (ii). In the event the Exercise Price is to be paid, in whole or in part, in accordance with the payment method described in clause (ii), and compliance with the provisions of the HSR Act is required in accordance with subsection (d) of this Section 2 prior to the consummation of such exercise, the Current Market Price of the Common Stock shall be calculated as of the date on which the Holder notifies the Company of its decision to exercise the Warrant, pending compliance with the provisions of the HSR Act, rather than the date of the consummation of such exercise.

(d) The Holder agrees that any exercise of this Warrant is, to the extent applicable, subject to compliance with the provisions of the HSR Act. The Company agrees that, in the event that the exercise of this Warrant by the Holder requires compliance with any provisions of the HSR Act, the Company shall cooperate with the Holder in connection with any such filings by (i) making all filings required to be made on the Company's part under the HSR Act and (ii) promptly furnishing, or causing to be furnished, any information that may be required by the Federal Trade Commission or the Department of Justice under the HSR Act.

(a) In case the Company shall pay or make a dividend or other distribution on any class of capital stock of the Company in Common Stock or any other security convertible into or exchangeable for shares of Common Stock (other than any rights, options or warrants described in subsection (b) of this
Section 6), the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for determination of stockholders entitled to receive such dividend or other distribution shall be reduced by multiplying such Exercise Price by a fraction of which (i) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination and (ii) the denominator shall be the sum of (A) such number of shares referred to in clause (i) and (B) the total number of shares of Common Stock constituting such dividend or other distribution (or, in the case of a dividend or distribution of securities convertible into or exchangeable for shares of Common Stock, the total number of shares of Common Stock underlying such securities), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination. For the purposes of this subsection (a), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

(b) In case the Company shall hereafter issue rights, options or warrants to all holders of its Common Stock entitling them to subscribe for or purchase shares of Common Stock or any other security convertible into or exchangeable for shares of Common Stock (such rights, options or warrants not being available on an equivalent basis to Holders of the Warrants upon exercise) at a price per share less than the Current Market Price of the Common Stock on the date fixed for the determination of stockholders entitled to receive such rights, options or warrants (other than pursuant to a dividend reinvestment plan), (i) the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for such determination shall be reduced by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of holders of Common Stock entitled to receive such rights, options or warrants by a fraction of which (A) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock that the aggregate of the offering price of the total number of shares of Common Stock so offered for subscription or purchase would purchase at such Current Market Price and (B) the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase (or such number of shares of Common Stock underlying any convertible securities so offered for subscription or purchase), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination (for the purposes of this subsection (b), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock), and (ii) if any such rights, options or warrants expire or terminate without having been exercised or are exercised for a consideration different from that utilized in the computation of any adjustment or adjustments on account of such rights, options or warrants, the Exercise Price with respect to any Warrant not theretofore exercised shall be readjusted such that the Exercise Price would be the same as would have resulted had such adjustment been made without regard to the issuance of such expired or terminated rights, options or warrants or based

upon the actual consideration received upon exercise thereof, as the case may be, which readjustment shall become effective upon such expiration, termination or exercise, as applicable; provided, however, that all readjustments in the Exercise Price based upon any expiration, termination or exercise for a different consideration of any such right, option or warrant, in the aggregate, shall not cause the Exercise Price to exceed the Exercise Price immediately prior to the time such rights, options or warrants were initially issued (without regard to any other adjustments of such number under this subsection
(b) that may have been made since the date of the issuance of such rights, options or warrants).

(c) In case the outstanding shares of Common Stock shall be subdivided into a greater number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such subdivision becomes effective shall be proportionately reduced, and, conversely, in case the outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such combination becomes effective shall be proportionately increased.

(d) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets (including securities, but excluding any rights, options or warrants referred to in subsection (b) of this Section 6, any dividend or distribution paid exclusively in cash and any dividend referred to in subsection (a) of this
Section 6), the Exercise Price shall be adjusted so that the same shall equal the price determined by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of stockholders entitled to receive such distribution by a fraction of which (i) the numerator shall be the Current Market Price at the close of business on the date fixed for such determination less the then fair market value of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock , and (ii) the denominator shall be such Current Market Price, such adjustment to become effective immediately prior to the opening of business on the next Business Day following the date fixed for the determination of stockholders entitled to receive such distribution.

(e) The Company may make such reductions in the Exercise Price, in addition to those required by subsections (a), (b), (c) and (d) of this Section 6, as it considers to be advisable in order that any event treated for Federal income tax purposes as a dividend of stock or stock rights shall not be taxable to the recipients.

(f) In case of any reclassification, recapitalization or other change in the outstanding securities of the class issuable upon exercise of this Warrant (including any such reclassification, recapitalization or other change upon a consolidation or merger in which the Company is the continuing corporation, but not including any transactions for which an adjustment is provided in subsection (c), (d) or (g) of this Section 6), the Company shall execute and deliver to the Holder a new warrant certificate, satisfactory in form and substance to the Holder and without payment of any additional consideration therefor, providing that the Holder shall have the right thereafter, during the period such Warrant shall be outstanding, to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such reclassification, recapitalization or other change by a holder of the number of shares of

Common Stock issuable upon exercise of this Warrant had it been exercised immediately prior to such reclassification, recapitalization or other change. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (f) shall similarly apply to successive reclassifications, recapitalizations and other changes in the outstanding securities of the class issuable upon exercise of this Warrant.

(g) In case of any consolidation of the Company with, or merger of the Company into, any other entity, any merger of another entity into the Company (other than a merger that does not result in any reclassification, conversion, exchange or cancellation of outstanding shares of the Common Stock) or any sale or transfer of all or substantially all of the assets of the Company, in each case in which this Warrant remains in full force and effect, the provisions of this Warrant shall be immediately and automatically amended, without any further action on the part of the Company or the Holder, to the extent necessary to entitle the Holder to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such consolidation, merger, sale of transfer by a holder of the number of shares of Common Stock that would have otherwise been issuable upon exercise of this Warrant had it been exercised immediately prior to such consolidation, merger, sale or transfer. If the holders of the Common Stock may elect from choices the kind or amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer, then for the purpose of this Section 6, the kind and amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer shall be deemed to be the choice specified by the Holder, which specification shall be made by the Holder by the later of (i) ten Business Days after the Holder is provided with a final version of all information required by law or regulation to be furnished to holders of Common Stock concerning such choice, or, if no such information is required, ten Business Days after the Holder is provided with a final version of all information that was otherwise furnished to the holders of Common Stock concerning such choice, and (ii) the last time at which holders of Common Stock are permitted to make their specification known to the Company. If the Holder fails to make any specification, the Holder's choice shall be deemed to be whatever choice is made by a plurality of holders of Common Stock not affiliated with the Company or the other person to the merger or consolidation. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section
6. The above provisions of this subsection (g) shall similarly apply to successive consolidations, mergers, sales or transfers.

(h) If the Company, at any time within nine (9) months following the issuance of this Warrant and while the Warrant remains outstanding and unexpired, shall issue any Additional Shares of Common Stock (as defined below)
(otherwise than as provided in the foregoing subsections 6(a) through 6(g) above) at a price per share less, or for other consideration lower, than the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, or without consideration, then upon such issuance the Exercise Price shall be adjusted to that price determined by multiplying the Exercise Price by a fraction (i) the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to the issuance of such Additional Shares of Common Stock plus the number of shares of Common

Stock which the aggregate consideration for the total number of such Additional Shares of Common Stock so issued would purchase at the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, and (ii) the denominator of which shall be the total number of shares of Common Stock outstanding immediately after the issuance of such Additional Shares of Common Stock. No adjustment of the Exercise Price shall be made under this subsection 6(h) upon the issuance of any Additional Shares of Common Stock which are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights or pursuant to the exercise of any conversion or exchange rights in any convertible securities if any such adjustments shall previously have been made upon the issuance of any such warrants, options or other rights or upon the issuance of any such convertible securities (or upon the issuance of any warrants, options or any rights therefor) pursuant to subsections 6(i) or 6(j) hereof.

(i) In case the Company shall issue any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above, and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such warrants, options or other rights on the date of issuance of such warrants, options or other rights shall be less than the Current Market Price as of the date of issuance of such warrants, options or other rights, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable pursuant to such warrants, options or other rights shall be deemed to have been issued as of the date of issuance of such warrants, options or rights, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such warrants, options, or other rights plus the minimum consideration to be received by the Company for the issuance of Additional Shares of Common Stock pursuant to such warrants, options, or other rights. Notwithstanding any other language in this
Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock.

(j) In case the Company shall issue any securities convertible into Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such convertible securities on the date of issuance of such convertible securities shall be less than the Current Market Price as of the date of issuance of such convertible securities, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable upon the conversion or exchange of all such convertible securities shall be deemed to have been issued as of the date of issuance of such convertible securities, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such convertible securities plus the minimum consideration to be received by the Company for the issuance of such Additional Shares of Common Stock pursuant to the terms of such convertible securities. No adjustment of the Exercise Price shall be made under this subsection upon the issuance of any

convertible securities that are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights therefor, if any such adjustments shall previously have been made upon the issuance of such warrants, options or other rights pursuant to subsection 6(i) hereof. Notwithstanding any other language in this Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any securities convertible into Additional Shares of Common Stock.

(k) Whenever there shall be any change in the Exercise Price under this Section 6, then there shall be an adjustment (to the nearest thousandth) in the Warrant Number, which adjustment shall become effective at the time such change in the Exercise Price becomes effective and shall be made by multiplying the Warrant Number in effect immediately before such change in the Exercise Price by a fraction the numerator of which is the Exercise Price immediately before such change and the denominator of which is the Exercise Price immediately after such change.

(l) The following provisions will be applicable to the making of adjustments in the Exercise Price hereinabove provided in this Section 6:

Additional Shares of Common Stock or warrants, options or other rights or convertible securities a consideration equal to the amount of such dividend so paid or satisfied.

(m) For the purpose of any computation under subsection (c) of
Section 2, Section 3 or Section 6, the current market price per share of Common Stock (the "Current Market Price") on any day shall be deemed to be the closing price per share as of the earlier of the last trading day prior to the date in question or the day before the Ex Date (as defined below) with respect to the issuance, payment or distribution. For this purpose, the term "Ex Date," when used with respect to the issuance, payment or distribution, shall mean the first date on which the Common Stock trades regular way on the applicable securities exchange or in the applicable securities market without the right to receive such issuance or distribution. The closing price for each day shall be (i) as reported in the Wall Street Journal (Eastern Edition) on the Nasdaq National Market System, (ii) if the Common Stock is not listed or admitted to trading on the Nasdaq National Market System, as reported in the Wall Street Journal (Eastern Edition) on the SmallCap Market or the principal national securities exchange on which the Common Stock is listed or admitted to trading or (iii) if not listed or admitted to trading on the Nasdaq National Market System, on the SmallCap Market or on any national securities exchange, as determined in good faith by the Board of Directors of Company for that purpose. In the event that the Board of Directors of the Company determines the Current Market Price pursuant to the preceding sentence, the Holder may, at its sole discretion, cause the Company to engage external independent appraisers selected by the Holder to determine the Current Market Price, which determination shall be binding. In the event that the Current Market Price determined by such independent appraisers differs from the Current Market Price determined by the Board of Directors of the Company by five percent (5%) or more and such difference is adverse to the interests of Holder, the Company shall bear the costs and expenses related to the independent audit; otherwise, the Holder shall bear such costs and expenses.

(n) No adjustment in the Exercise Price shall be required unless such adjustment (plus any adjustments not previously made by reason of this subsection (n)) would require an increase or decrease of at least 1% in such Exercise Price; provided, however, that any adjustments that by reason of this subsection (n) are not required to be made shall be carried forward and taken into account in any subsequent adjustment. All calculations under this subsection (n) shall be made to the nearest cent or to the nearest 1/100 of a share of Common Stock, as the case may be. Notwithstanding the foregoing, any adjustment required by this subsection (n) shall be made no later than the expiration of the right to exercise the Warrant or a portion thereof.

(o) Whenever the Exercise Price and Warrant Number is adjusted as herein provided:

(i) the Company shall compute the adjusted Exercise Price and Warrant Number in accordance with Section 6 and shall prepare a certificate signed by the treasurer of the Company setting forth the adjusted Exercise Price and Warrant Number and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be filed with any transfer agent; and

(ii) a notice stating that the Exercise Price and Warrant Number have been adjusted and setting forth the adjusted Exercise Price and Warrant Number shall forthwith be required, and as soon as practicable after it is required, such notice (together with a copy of the certificate prepared under
Section 6(o)(i) hereof) shall be mailed by the Company to the Holder of the Warrant at its last address as shall appear in the Warrant Register (as defined in Section 7(a)).

(p) In case:

(i) the Company shall declare a dividend or other distribution on its Common Stock (other than a dividend payable exclusively in cash that would not cause an adjustment to the Exercise Price to take place pursuant to Section 6 above);

(ii) the Company or any of its subsidiaries shall make a tender offer for the Common Stock;

(iii) the Company shall authorize the granting to all Holders of its Common Stock of rights, options or warrants to subscribe for or purchase any shares of capital stock of any class;

(iv) of any reclassification of the Common Stock (other than a subdivision or combination of its outstanding shares of Common Stock), or of any consolidation, merger or share exchange to which the Company is a party and for which approval of any stockholders of the Company is required, or of the sale or transfer of all or substantially all of the assets of the Company; or

(v) of the voluntary of involuntary dissolution, liquidation or winding up of the Company;

then the Company shall cause to be filed with any warrant agent, and shall cause to be mailed to the Holder of this Warrant at its last address as shall appear in the Warrant Register, at least ten days prior to the effective date hereinafter specified, a notice stating (A) the date on which a record has been taken for the purpose of such dividend, distribution or grant of rights, options or warrants, or, if record is not to be taken, the date as of which the identity of the holders of Common Stock of record entitled to such dividend, distribution, rights, options or warrants is to be determined, or (B) the date on which such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up. Neither the failure to give such notice nor any defect therein shall affect the legality or validity of the proceedings described in clauses
(i) through (v) of this subsection (p).

(q) For the purpose of this Section 6,

(i) "Additional Shares of Common Stock" shall mean all shares of Common Stock issued by the Company, except:

(a) shares of Common Stock outstanding as of the date hereof;

(b) shares of Common Stock issuable upon the exercise of warrants, including this Warrant, which are outstanding on the date hereof; and

(c) shares of Common Stock (and/or options, warrants or other Common Stock purchase rights) issued or to be issued to employees, officers or directors of, or advisors to the Company, pursuant to compensation plans, agreements or other arrangements that are approved by the Company's Board of Directors.

(ii) "Common Stock" shall mean the Company's Common Stock and any other shares of capital stock of the Company of any class, or series within a class, whether now or hereafter authorized, which has the right to participate in the distribution of earnings or assets of the Company without limit as to amount or percentage.

(d) Compliance with Securities Laws.

(i) The Holder of this Warrant, by acceptance hereof, acknowledges that the transfer of this Warrant and the Warrant Shares is subject to the Holder's compliance with the provisions of the Securities Act and any applicable state securities laws in respect of any such transfer.

(ii) The certificate or certificates representing any Warrant Shares acquired upon exercise of this Warrant, and any Common Stock or other securities issued in respect of such Warrant Shares upon any stock split, stock dividend, recapitalization, merger, consolidation or similar event, shall be stamped or otherwise imprinted with the following legend (unless such a legend is no longer required under the Securities Act):

THE TRANSACTION IN WHICH THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ACQUIRED WAS NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES REPRESENTED BY THIS CERTIFICATE SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL

IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH
EFFECT HAS BEEN PROVIDED.

(iii) The Company shall not be required to register the transfer of this Warrant or the Warrant Shares on the books of the Company unless the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company that this Warrant or the Warrant Shares, as applicable, are eligible for transfer without registration under the Securities Act; provided, however, that no such opinion of counsel shall be necessary in order to effectuate a transfer of this Warrant or any of the Warrant Shares (A) in accordance with the provisions of Rule 144(k) promulgated under the Securities Act or (B) with respect to the Warrant Shares, in accordance with the intended method of disposition set forth in any registration statement filed by the Company and covering the Warrant Shares pursuant to the Registration Rights Agreement.

(iv) The conditions precedent imposed by this subsection (d) upon the transferability of this Warrant and the Warrant Shares shall cease and terminate as to this Warrant and any of the Warrant Shares (A) when such securities shall have been registered under the Securities Act and sold or otherwise disposed of in accordance with the intended method of disposition by the seller or sellers thereof set forth in the registration statement covering such securities, (B) at such time as the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company to the effect that the restrictive legend on such securities is no longer required in order to establish compliance with the provisions of the Securities Act, or (C) when such securities are transferred pursuant to Rule 144 or become transferable in accordance with the provisions of Rule 144(k) promulgated under the Securities Act. Whenever the conditions imposed by this subsection (d) shall terminate as hereinabove provided with respect to any of the Warrant Shares, the holder of any such securities bearing the legend set forth in Section 7(d)(ii) shall be entitled to receive from the Company, without expense (except for the payment of any applicable transfer taxes) and as expeditiously as possible, new stock certificates not bearing such legend.

(a) during the term of this Warrant, the Company will reserve a sufficient number of shares of authorized and unissued Common Stock to provide for the issuance of Common Stock, which shares shall be duly authorized, fully paid and non-assessable, upon the exercise of this Warrant and, from time to time, will take all steps necessary to amend its Certificate of Incorporation to provide sufficient reserves of shares of Common Stock issuable upon exercise of the Warrant;

(b) the Company will not, by amendment of its Certificate of Incorporation or through reorganization, consolidation, merger, dissolution or sale of assets, or by any other voluntary act, avoid or seek to avoid the observance or performance of any of the covenants, stipulations or conditions to be observed or performed hereunder by the Company;

(c) all shares that may be issued upon exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein, will be free from all taxes,

liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously or otherwise specified herein); and

(d) issuance of this Warrant by the Company shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock upon the exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein.

IN WITNESS WHEREOF, CONCURRENT COMPUTER CORPORATION has caused this Warrant

to be executed by its authorized officer.

Dated: October 9, 2001

CONCURRENT COMPUTER CORPORATION

By:   /s/ Steven R. Norton
   ------------------------------------

Name: Steven R. Norton
      ---------------------------------

Title: Executive Vice President and CFO
       --------------------------------

Exhibit 4.6

THIS WARRANT AND THE SECURITIES TO BE ACQUIRED UPON THE EXERCISE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR UNDER ANY APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN EXEMPTION THEREFROM UNDER SUCH ACT AND UNDER ANY APPLICABLE STATE SECURITIES LAWS.

WARRANT TO PURCHASE
SHARES OF COMMON STOCK OF
CONCURRENT COMPUTER CORPORATION

(2) For each $30 million increment of video stream revenue to the Company from sales of equipment to systems employing Holder's digital headend equipment, the Company will issue warrants to S-A that number of shares determined by dividing $1.5 million by the per share cost impact to the Company of the Warrants, using the Black/Scholes valuation method, up to a maximum of 888,888 shares per warrant. If based on the Black/Scholes calculation, a warrant to purchase in excess of 888,888 shares should be granted as of any date, the excess shares will be included in any future grant in which the calculation would otherwise result in the grant of a warrant for a number of shares less than the maximum. A maximum of warrants to purchase eight million shares will be issued under this formula.

for the number of shares for which the Warrant is being exercised determined in accordance with the provisions hereof.

This Warrant is subject to the following terms and conditions.

1. EXERCISE; ISSUANCE OF CERTIFICATES; PAYMENT OF SHARES.

1.1 GENERAL. This Warrant is exercisable at the option of the Holder, at any time or from time to time up to and including the Expiration Date for all or any part of the shares of Common Stock (but not for a fraction of a share) which may be purchased hereunder. The Company agrees that the shares of Common Stock purchased under this Warrant shall be and are deemed to be issued to the Holder hereof as the record owner of such shares as of the close of business on the date on which this Warrant shall have been surrendered, properly endorsed, together with the completed, executed Form of Subscription, and payment made for such shares. Certificates for the shares of Common Stock so purchased, together with any other securities or property to which the Holder hereof is entitled upon such exercise, shall be delivered to the Holder hereof by the Company at the Company's expense within a reasonable time after the rights represented by this Warrant have been so exercised. In case of a purchase of less than all the shares of Common Stock which may be purchased under this Warrant, the Company shall cancel this Warrant and execute and deliver a new Warrant or Warrants of like tenor for the balance of the shares of Common Stock purchasable under the Warrant surrendered to the Holder hereof within a reasonable time. Each stock certificate so delivered shall be in such denominations of Common Stock as may be required by the Holder hereof and shall be registered in the name of such Holder.

2. SHARES TO BE FULLY PAID; RESERVATION OF SHARES. The Company covenants and agrees that all shares of Common Stock which may be issued upon the exercise of the rights represented by this Warrant will, upon issuance, be duly authorized, validly issued, fully paid and non-assessable, free from all preemptive rights of any shareholder and free of all taxes, liens and charges with respect to the issue thereof. The Company further covenants and agrees that during the period within which the rights represented by this Warrant may be exercised, the Company will at all times have authorized and reserved, for the purpose of issue or transfer upon exercise of the subscription rights evidenced by this Warrant, a sufficient number of shares of authorized but unissued Common Stock when and as required to provide for the exercise in full of the rights represented by this Warrant. The Company will take all such action as may be necessary to assure that such shares of Common Stock may be issued as provided herein

without violation of any applicable law or regulation, or of any requirements of any domestic securities exchange upon which the Common Stock is listed; provided, however, that the Company shall not be required to effect a registration under federal or state securities laws with respect to such exercise. If at any time the total number of shares of Common Stock issuable pursuant hereto, together with the maximum number of shares of Common Stock issuable upon conversion, exchange or exercise of (i) all then-outstanding securities (whether debt or equity) of the Company convertible or exchangeable for Common Stock and (ii) all then-outstanding warrants and options to purchase Common Stock, would exceed the total number of shares of Common Stock then authorized by the Company's articles of incorporation but unissued, the Company shall promptly amend its articles of incorporation to increase the number of authorized shares of Common Stock such that there shall be a sufficient number of authorized and unissued shares of Common Stock available at all times to effect the exercise hereof.

3. ANTIDILUTION ADJUSTMENTS. The Stock Purchase Price or shares issuable hereunder shall be subject to adjustment from time to time upon the occurrence of certain events described in this Section 3.

3.1 ADJUSTMENT FOR STOCK SPLITS, COMBINATIONS, DIVIDENDS AND DISTRIBUTIONS.

(A) the numerator of which shall be the total number of shares of Common Stock issued and outstanding immediately prior to such subdivision; and

(B) the denominator of which shall be the total number of shares of Common Stock issued and outstanding immediately after such subdivision.

(A) the numerator of which shall be the total number of shares of Common Stock issued and outstanding immediately prior to such combination; and

(B) the denominator of which shall be the total number of shares of Common Stock issued and outstanding immediately after such combination.

(A) the numerator of which shall be the total number of shares of Common Stock issued and outstanding immediately prior to the time of such issuance or the close of business on such record date; and

(B) the denominator of which shall be the sum of (1) the total number of shares of Common Stock issued and outstanding immediately prior to the time of such issuance or the close of business on such record date, plus (2) the total number of shares of Common Stock issuable in payment of such dividend or distribution; provided however, that if such a record date shall have been fixed and such dividend is not fully paid, or such distribution is not fully made, on the date fixed therefor, then the Stock Purchase Price shall be recomputed accordingly as of the close of business on such record date.

In the event that the Holder elects to exercise such Warrant after any record date for determining holders of Common Stock entitled to receive any dividend or other distribution payable in shares of Common Stock but prior to the date on which such dividend is paid, the Company may defer, until such dividend is paid, to issue to the Holder of all of the additional shares of Common Stock issuable to the Holder upon the exercise of this Warrant solely by reason of the adjustment made to the Stock Purchase Price pursuant to paragraph
(d) of this Section 3.1 on the record date for such dividend; provided however, that the Company shall, promptly upon the request of the Holder, issue to the Holder a written certificate or other instrument evidencing the Holder's right to receive such additional shares of Common Stock.

3.2 DIVIDENDS IN OTHER STOCK AND PROPERTY; RECLASSIFICATION. If at any time or from time to time the holders of Common Stock (or any shares of stock or other securities at the time receivable upon the exercise of this Warrant) shall have received or become entitled to receive, without payment therefor,

(A) any share of stock or other securities which are at any time directly or indirectly convertible into or exchangeable for Common Stock, or any rights

or options to subscribe for, purchase or otherwise acquire any of the foregoing by way of dividend or other distribution,

(C) any cash paid or payable otherwise than as a cash dividend, or

(D) additional stock or other securities or property (including cash) by way of spin-off, split-up, reclassification, combination of shares or similar corporate rearrangement (other than an event for which adjustment is otherwise made pursuant to Section 3.4 below), then and in each such case, the Holder hereof shall, upon the exercise of this Warrant, be entitled to receive, in addition to the number of shares of Common Stock receivable thereupon, and without payment of any additional consideration therefor, the amount of stock and other securities and property (other than cash paid or payable as a cash dividend) which such Holder would hold on the date of such exercise had he been the holder of record of such Common Stock as of the date on which holders of Common Stock received or became entitled to receive such other shares of stock and other securities and property.

3.3 REORGANIZATION, RECLASSIFICATION, CONSOLIDATION, MERGER OR SALE. If any reorganization of the capital stock of the Company, or any consolidation or merger of the Company with another corporation, or the sale of all or substantially all of its assets to another corporation shall be effected in such a way that holders of Common Stock shall be entitled to receive stock, securities, or other assets or property, then, as a condition of such reorganization, reclassification, consolidation, merger or sale, lawful and adequate provisions shall be made whereby the Holder hereof shall thereafter have the right to purchase and receive (in lieu of the shares of the Common Stock of the Company immediately theretofore purchasable and receivable upon the exercise of the rights represented hereby) such shares of stock, securities or other assets or property as may be issued or payable with respect to or in exchange for a number of outstanding shares of such Common Stock equal to the number of shares of such stock immediately theretofore purchasable and receivable upon the exercise of the rights represented hereby. In any reorganization described above, appropriate provisions shall be made with respect to the rights and interests of the Holder of this Warrant to the end that the provisions hereof (including, without limitation, provisions for adjustment of the number of shares of Common Stock purchasable and receivable upon the exercise of this Warrant) shall thereafter be applicable, as nearly as may be, in relation to any shares of stock, securities or assets thereafter deliverable upon the exercise hereof. The Company will not effect any such consolidation, merger or sale unless, prior the consummation thereof, the successor corporation (if other than the Company) resulting from such consolidation or the corporation purchasing such assets shall assume by written instrument, executed and mailed or delivered to the registered Holder hereof at the last address of such Holder appearing on the books of the Company, the obligation to deliver to such Holder such share of stock, securities or assets as, in accordance with the foregoing provisions, such Holder may be entitled to purchase.

3.4 NOTICE OF ADJUSTMENT. Upon any adjustment pursuant to this

Section 3, the Company shall give written notice thereof, by first class mail, postage prepaid, addressed to the registered Holder of this Warrant at the address of such Holder as shown on the books of the Company, and, in case of a Holder with an address of record outside of the United States, by facsimile, and confirmed in writing by first class air mail. The notice shall be signed by the Company's chief financial officer and shall state the nature of such adjustment, setting forth in reasonable detail the method of effecting the adjustment and the facts upon which such adjustment is based. If at any time in addition to any of the adjustments set forth in this Section 3, an increase in the number of authorized and unissued shares of Common Stock is required pursuant to Section 2 hereof, the Company shall promptly provide to the Holder a certificate of the Secretary of the Company certifying that the requisite number of shares of Common Stock have been authorized to permit the exercise of the Warrant.

3.5 OTHER NOTICES. If at any time:

(1) the Company shall declare any cash dividend upon its Common Stock;

(2) the Company shall declare any dividend upon its Common Stock payable in stock or make any special dividend or other distribution to the holders of its Common Stock;

(3) the Company shall offer for subscription pro rata to the holders of its Common Stock any additional shares of stock of any class or other rights;

(4) there shall be any capital reorganization or reclassification of the capital stock of the Company; or consolidation or merger of the Company; or consolidation or merger of the Company with, or sale of all or substantially all of its assets to another corporation; or

(5) there shall be a voluntary or involuntary dissolution, liquidation or winding-up of the Company;

then, in any one or more of said cases, the Company shall give, by first class mail, postage prepaid, addressed to the Holder of this Warrant at the address of such Holder as shown on the books of the Company, (a) at least twenty (20) days prior written notice (by the method set forth in Section 3.4 above) of the date on which the books of the Company shall close or a record shall be taken for such dividend, distribution or subscription rights or for determining rights to vote in respect of any such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation or winding-up, and (b) in the case of any such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation or winding-up, at least twenty (20) days prior written notice of the date when the same shall take place. Any notice given in accordance with the foregoing clause (a) shall also specify, in the case of any such dividend, distribution or subscription rights, the date on which the holders of Common Stock shall be entitled thereto. Any notice given in accordance with the foregoing clause (b) shall also specify the date on which the

holders of Common Stock shall be entitled to exchange their Common Stock for securities or other property deliverable upon such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation, winding-up or conversion, as the case may be.

3.6 CERTAIN EVENTS. If any change in the outstanding Common Stock of the Company or any other event occurs as to which the other provision of this
Section 3 are not strictly applicable or if strictly applicable would not, in the reasonable opinion of the Company, fairly protect the purchase rights of the Holder of the Warrant in accordance with the essential intent and principles of such provision, then the Board of Directors of the Company shall make an adjustment in the number and class of shares purchasable upon exercise of this Warrant or the application of such provision, so as to protect such purchase rights as aforesaid. The adjustment shall be such as will give the Holder of the Warrant upon exercise for the same aggregate Stock Purchase Price the total number, class and kind of shares as he would have owned had the Warrant been exercised prior to the event and had he continued to hold such shares until after the event requiring adjustment.

4. ISSUE TAX. The issuance of certificates for shares of Common Stock upon the exercise of the Warrant shall be made without charge to the Holder of the Warrant for any issue tax (other than any applicable income taxes) in respect thereof; provided, however, that the Company shall not be required to pay any tax which may be payable in respect of any transfer involved in the issuance and delivery of any certificate in a name other than that of the then Holder of the Warrant being exercised.

5. CLOSING OF BOOKS. The Company will at no time close its transfer books against the transfer of any Warrant or of any shares of Common Stock issued or issuable upon the exercise of any warrant in any manner which interferes with the timely exercise of this Warrant.

6. NO VOTING OR DIVIDEND RIGHTS; LIMITATIONS OF LIABILITY. Nothing contained in this Warrant shall be construed as conferring upon the Holder hereof the right to vote or to consent or to receive notice as a stockholder of the Company or any other matters or any rights whatsoever as a stockholder of the Company. No dividends or interest shall be payable or accrued in respect of this Warrant or the interest represented hereby or the shares purchasable hereunder until and only to the extend that this Warrant shall have been exercised. No provisions hereof, in the absence of affirmative action by the Holder to purchase shares of Common Stock, and no mere enumeration herein of the rights or privileges of the Holder hereof, shall give rise to any liability of such Holder for the Stock Purchase Price or as a stockholder of the Company, whether such liability is asserted by the Company or by its creditors.

7. REGISTRATION RIGHTS. The Holder hereof shall have the following rights:

7.1 DEMAND REGISTRATION. The Holder hereof shall have the right to request, on one (1) occasion, that the Company prepare and promptly file a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering

(A) unless it shall have received written assurance that the Warrant will be exercised no later than the closing of the sale of the Common Stock to be sold pursuant to the related registration statement; or

(B) at any time prior to the expiration of a period of such number of days following the date on which any previous distribution attempted in respect of a registration requested pursuant to this Section 7.1 shall have been terminated without being consummated as shall be determined by the lead managing underwriter of any such underwritten offering (or, in the event no underwriter shall have participated in such terminated distribution, by an investment banking firm of recognized national standing selected by the Holder) to be reasonably necessary and appropriate to effect the successful distribution of securities in a subsequent registration requested pursuant to this Section 7.1, but in any event not more than 90 days after any such registration shall have been terminated or not consummated; or

7.2 PIGGYBACK RIGHTS. In addition, each time the Company shall determine to file a registration statement under the Securities Act (excluding a registration on Form S-4 or S-8 or a registration statement on Form S-1 covering solely an employee benefit plan) in connection with the proposed offer and sale of money of any of its securities either for its own account or on behalf of any other security holder, the Company shall give prompt written notice of such determination to the Holder hereof. The Holder hereof shall provide a written request to the Company it if desires to participate in such registration (the "Holder Notice"), accompanied by this Warrant, duly endorsed, together with a Form of Subscription attached hereto, duly filled in and signed, and the prompt payment in cash or by check of the aggregate Stock Purchase Price for the shares for which this Warrant is being exercised in accordance with Section 1 hereof, stating the number of shares of Common Stock to be registered, which Holder Notice must be given within twenty (20) days after the receipt by the Holder of the Company's notice. Upon receipt of the Holder Notice, the Company shall cause all shares of Common Stock issuable upon exercise of this Warrant with respect to which the Holder hereof has requested registration to be included in such registration statement and registered under the Securities Act, all to the extent requisite to permit the sale or other disposition by the prospective seller or sellers of the Common Stock issuable upon exercise hereof to be so registered. If the registration of which the Company gives written notice pursuant to this Section 7.2 is for a public offering involving an underwriting, the Company shall so advise the Holder as a part of its written notice. In such event, the right of the Holder hereof to registration pursuant to his Section 7.2 shall be conditioned upon the Holder's participation in such underwriting and the inclusion of such Holder's shares of Common Stock in the underwriting to the extent provided herein.

If, at any time after giving written notice of its intention to register any of its securities and prior to the effective date of the registration statement filed in connection with such registration, the Company shall determine for any reason not to register such securities, the company will give written notice of such determination to the Holder, and, upon given such notice, the Company shall be relieved of its obligation to register any Common Stock acquired upon exercise of the Warrant in connection with such registration (but not from its obligation to pay the registration expenses in connection therewith), without prejudice, however, to the rights of the Holder to request that such registration be effected as a registration under Section 7.1.

If, in connection with a registration pursuant to this Section 7.2, the lead managing underwriter advises the Company in writing that, in its opinion, the total number of securities requested to be included in such registration exceeds the number which can be sold in such offering without materially and adversely affecting the offering price of such securities by such underwriters (such opinion to state the reasons therefor), the Company will promptly furnish the Holder with a copy of such opinion and will include the Common Stock to be acquired upon exercise of the Warrant in such registration to the extent of the number which the Company is so advised can be sold in such offering, determined by the following:

8. MODIFICATION AND WAIVER. This Warrant and any provision hereof may be changed, waived, discharged or terminated only by an instrument in writing signed by the party against which enforcement of the same is sought.

9. NOTICES. Any notice, request or other document required or permitted to

be given or delivered to the holder hereof or the Company shall be delivered or shall be sent by certified mail, postage prepaid, to each such holder at its address as shown on the books of the Company or to the Company at the address indicated therefor in the first paragraph of this Warrant or such other address as either may from time to time provide to the other and shall be sent to any such holder located outside of the United Stated by facsimile confirmed in writing by first class air mail.

10. BINDING EFFECT ON SUCCESSORS. This Warrant shall be binding upon any corporation succeeding the Company by merger, consolidation or acquisition of all or substantially of the Company's assets. All of the obligations of the Company relating to the Common Stock issuable upon the exercise of this Warrant shall survive the exercise and termination of this Warrant. All of the covenants and agreements of the Company shall inure to the benefit of the successors and assigns of the holder thereof.

11. DESCRIPTIVE HEADINGS AND GOVERNING LAWS. The description headings of the several sections and paragraphs of this Warrant are inserted for convenience only and do not constitute a part of this Warrant. This Warrant shall be construed and enforced in accordance with, and the rights of the parties shall be governed by, the laws of the State of Florida.

12. LOST WARRANTS. The Company represents and warrants to the Holder hereof that upon receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction, or mutilation of this Warrant and, in the case of any such loss, theft or destruction, upon receipt of an indemnity reasonably satisfactory to the Company, or in the case of any such mutilation upon surrender and cancellation of such Warrant, the Company, at its expense, will make and deliver a new Warrant, of like tenor, in lieu of the lost, stolen, destroyed or mutilated Warrant.

IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed by its officers, thereunto duly authorized this 1st day of April, 2002.

/s/ Jack A. Bryant
-----------------------------
    Jack A. Bryant

CONCURRENT COMPUTER CORPORATION
a Delaware Corporation

Exhibit 4.7

THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THIS WARRANT SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT HAS BEEN PROVIDED.

Warrant No. 3 Date: January 15, 2002

WARRANT TO PURCHASE COMMON STOCK
OF
CONCURRENT COMPUTER CORPORATION

Void after 5:00 P.M. (United States Eastern Time) on January 15, 2006, unless extended as provided herein.

This certifies that, for value received, receipt and sufficiency of which are hereby acknowledged, Comcast Concurrent Holdings, Inc., or its registered assigns (the "HOLDER"), is entitled, subject to the terms and conditions set forth below, to purchase from Concurrent Computer Corporation, a Delaware corporation (the "COMPANY"), fifty two thousand five hundred and eleven (52,511) (the "WARRANT NUMBER") validly issued, fully paid and nonassessable shares (the "WARRANT SHARES") of Common Stock of the Company, par value $0.01 per share (the "COMMON STOCK"), subject to adjustment as provided herein, at a purchase price equal to $15.019 per share (the "EXERCISE PRICE").

The term "WARRANT" as used herein shall mean this Warrant, and any warrants delivered in substitution or exchange therefor as provided herein.

Section 6(i)) following such Saturday, Sunday or recognized holiday, (b) in the event that, on the expiration date of this Warrant, the Company is then required, pursuant to an effective demand therefor under that certain Registration Rights Agreement of even date herewith between the Company and the initial Holder hereof (the "REGISTRATION RIGHTS AGREEMENT") to use its reasonable best efforts to effect, or is in the process of effecting, a registration under the Securities Act of 1933, as amended (the "SECURITIES ACT") for a public offering in which Warrant Shares are entitled to be included as provided in the Registration Rights Agreement, or if the Company is in default of any such obligations to register the sale of such Common Stock, the right to exercise this Warrant shall continue until the later of 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which such registration shall have become effective or the 30th day following the date all such defaults shall have been cured, and (c) in the event that, on the expiration date of this Warrant, the Holder and the Company are in the process of complying with the provisions of the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR ACT"), in accordance with the provisions of Section 2(d) below, the right to exercise this Warrant shall continue until 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which any waiting period under the HSR Act applicable to the exercise of the Warrant shall have expired or been terminated.

(a) This Warrant may be exercised by the Holder, in whole or in part, by (i) the surrender of this Warrant to the Company, with the Notice of Exercise annexed hereto duly completed and executed on behalf of the Holder, at the office of the Company (or such other office or agency of the Company as it may designate by notice in writing to the Holder at the address of the Holder appearing on the books of the Company) during the Exercise Period and (ii) the delivery of payment to the Company of the Exercise Price for the number of Warrant Shares specified in the Notice of Exercise in any manner specified in subsection (c) of this Section 2.

(b) The Company agrees that such Warrant Shares shall be deemed to be issued to the Holder as the record holder of such Warrant Shares as of the close of business on the date on which this Warrant shall have been surrendered and payment made for the Warrant Shares as aforesaid. A stock certificate or certificates for the Warrant Shares specified in the Notice of Exercise shall be delivered to the Holder as promptly as practicable, and in any event within ten days thereafter. If this Warrant shall have been exercised only in part, the Company shall, at the time of delivery of the stock certificate or certificates, deliver to the Holder a new Warrant evidencing the rights to purchase the remaining Warrant Shares, which new Warrant shall in all other respects be identical with this Warrant. No adjustments shall be made on Warrant Shares issuable on the exercise of this Warrant for any cash dividends paid or payable to holders of record of Common Stock prior to the date as of which the Holder shall be deemed to be the record holder of such Warrant Shares.

(c) The Exercise Price shall be payable (i) in cash or its equivalent, payable by wire transfer of immediately available funds to a bank account specified by the Company or by certified or bank cashiers' check in lawful money of the United States of America; (ii) by surrendering to the Company the right to purchase a number of Warrant Shares equal to the product obtained by multiplying the number of Warrant Shares to be purchased (including any

Warrant Shares to be surrendered) by a fraction, the numerator of which is the Exercise Price and the denominator of which is the Current Market Price (as defined in Section 6(i) below) of the Common Stock on the date of exercise of the Warrant, or (iii) in any combination of (i) or (ii). In the event the Exercise Price is to be paid, in whole or in part, in accordance with the payment method described in clause (ii), and compliance with the provisions of the HSR Act is required in accordance with subsection (d) of this Section 2 prior to the consummation of such exercise, the Current Market Price of the Common Stock shall be calculated as of the date on which the Holder notifies the Company of its decision to exercise the Warrant, pending compliance with the provisions of the HSR Act, rather than the date of the consummation of such exercise.

(d) The Holder agrees that any exercise of this Warrant is, to the extent applicable, subject to compliance with the provisions of the HSR Act. The Company agrees that, in the event that the exercise of this Warrant by the Holder requires compliance with any provisions of the HSR Act, the Company shall cooperate with the Holder in connection with any such filings by (i) making all filings required to be made on the Company's part under the HSR Act and (ii) promptly furnishing, or causing to be furnished, any information that may be required by the Federal Trade Commission or the Department of Justice under the HSR Act.

(a) In case the Company shall pay or make a dividend or other distribution on any class of capital stock of the Company in Common Stock or any other security convertible into or exchangeable for shares of Common Stock (other than any rights, options or warrants described in subsection (b) of this
Section 6), the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for determination of stockholders entitled to receive such dividend or other distribution shall be reduced by multiplying such Exercise Price by a fraction of which (i) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination and (ii) the denominator shall be the sum of (A) such number of shares referred to in clause (i) and (B) the total number of shares of Common Stock constituting such dividend or other distribution (or, in the case of a dividend or distribution of securities convertible into or exchangeable for shares of Common Stock, the total number of shares of Common Stock underlying such securities), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination. For the purposes of this subsection (a), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

(b) In case the Company shall hereafter issue rights, options or warrants to all holders of its Common Stock entitling them to subscribe for or purchase shares of Common Stock or any other security convertible into or exchangeable for shares of Common Stock (such rights, options or warrants not being available on an equivalent basis to Holders of the Warrants upon exercise) at a price per share less than the Current Market Price of the Common Stock on the date fixed for the determination of stockholders entitled to receive such rights, options or warrants (other than pursuant to a dividend reinvestment plan), (i) the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for such determination shall be reduced by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of holders of Common Stock entitled to receive such rights, options or warrants by a fraction of which (A) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock that the aggregate of the offering price of the total number of shares of Common Stock so offered for subscription or purchase would purchase at such Current Market Price and (B) the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase (or such number of shares of Common Stock underlying any convertible securities so offered for subscription or purchase), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination (for the purposes of this subsection (b), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock), and (ii) if any such rights, options or warrants expire or terminate without having been exercised or are exercised for a consideration different from that utilized in the computation of any adjustment or adjustments on account of such rights, options or warrants, the Exercise Price with respect to any Warrant not theretofore exercised shall be readjusted such that the Exercise Price would be the same as would have resulted had such adjustment been made without regard to the issuance of such expired or terminated rights, options or warrants or based

upon the actual consideration received upon exercise thereof, as the case may be, which readjustment shall become effective upon such expiration, termination or exercise, as applicable; provided, however, that all readjustments in the Exercise Price based upon any expiration, termination or exercise for a different consideration of any such right, option or warrant, in the aggregate, shall not cause the Exercise Price to exceed the Exercise Price immediately prior to the time such rights, options or warrants were initially issued (without regard to any other adjustments of such number under this subsection
(b) that may have been made since the date of the issuance of such rights, options or warrants).

(c) In case the outstanding shares of Common Stock shall be subdivided into a greater number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such subdivision becomes effective shall be proportionately reduced, and, conversely, in case the outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such combination becomes effective shall be proportionately increased.

(d) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets (including securities, but excluding any rights, options or warrants referred to in subsection (b) of this Section 6, any dividend or distribution paid exclusively in cash and any dividend referred to in subsection (a) of this
Section 6), the Exercise Price shall be adjusted so that the same shall equal the price determined by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of stockholders entitled to receive such distribution by a fraction of which (i) the numerator shall be the Current Market Price at the close of business on the date fixed for such determination less the then fair market value of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock , and (ii) the denominator shall be such Current Market Price, such adjustment to become effective immediately prior to the opening of business on the next Business Day following the date fixed for the determination of stockholders entitled to receive such distribution.

(e) The Company may make such reductions in the Exercise Price, in addition to those required by subsections (a), (b), (c) and (d) of this Section 6, as it considers to be advisable in order that any event treated for Federal income tax purposes as a dividend of stock or stock rights shall not be taxable to the recipients.

(f) In case of any reclassification, recapitalization or other change in the outstanding securities of the class issuable upon exercise of this Warrant (including any such reclassification, recapitalization or other change upon a consolidation or merger in which the Company is the continuing corporation, but not including any transactions for which an adjustment is provided in subsection (c), (d) or (g) of this Section 6), the Company shall execute and deliver to the Holder a new warrant certificate, satisfactory in form and substance to the Holder and without payment of any additional consideration therefor, providing that the Holder shall have the right thereafter, during the period such Warrant shall be outstanding, to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such reclassification, recapitalization or other change by a holder of the number of shares of

Common Stock issuable upon exercise of this Warrant had it been exercised immediately prior to such reclassification, recapitalization or other change. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (f) shall similarly apply to successive reclassifications, recapitalizations and other changes in the outstanding securities of the class issuable upon exercise of this Warrant.

(g) In case of any consolidation of the Company with, or merger of the Company into, any other entity, any merger of another entity into the Company (other than a merger that does not result in any reclassification, conversion, exchange or cancellation of outstanding shares of the Common Stock) or any sale or transfer of all or substantially all of the assets of the Company, in each case in which this Warrant remains in full force and effect, the provisions of this Warrant shall be immediately and automatically amended, without any further action on the part of the Company or the Holder, to the extent necessary to entitle the Holder to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such consolidation, merger, sale of transfer by a holder of the number of shares of Common Stock that would have otherwise been issuable upon exercise of this Warrant had it been exercised immediately prior to such consolidation, merger, sale or transfer. If the holders of the Common Stock may elect from choices the kind or amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer, then for the purpose of this Section 6, the kind and amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer shall be deemed to be the choice specified by the Holder, which specification shall be made by the Holder by the later of (i) ten Business Days after the Holder is provided with a final version of all information required by law or regulation to be furnished to holders of Common Stock concerning such choice, or, if no such information is required, ten Business Days after the Holder is provided with a final version of all information that was otherwise furnished to the holders of Common Stock concerning such choice, and (ii) the last time at which holders of Common Stock are permitted to make their specification known to the Company. If the Holder fails to make any specification, the Holder's choice shall be deemed to be whatever choice is made by a plurality of holders of Common Stock not affiliated with the Company or the other person to the merger or consolidation. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (g) shall similarly apply to successive consolidations, mergers, sales or transfers.

(h) If the Company, at any time within nine (9) months following the issuance of this Warrant and while the Warrant remains outstanding and unexpired, shall issue any Additional Shares of Common Stock (as defined below)
(otherwise than as provided in the foregoing subsections 6(a) through 6(g) above) at a price per share less, or for other consideration lower, than the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, or without consideration, then upon such issuance the Exercise Price shall be adjusted to that price determined by multiplying the Exercise Price by a fraction (i) the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to the issuance of such Additional Shares of Common Stock plus the number of shares of Common

Stock which the aggregate consideration for the total number of such Additional Shares of Common Stock so issued would purchase at the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, and (ii) the denominator of which shall be the total number of shares of Common Stock outstanding immediately after the issuance of such Additional Shares of Common Stock. No adjustment of the Exercise Price shall be made under this subsection 6(h) upon the issuance of any Additional Shares of Common Stock which are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights or pursuant to the exercise of any conversion or exchange rights in any convertible securities if any such adjustments shall previously have been made upon the issuance of any such warrants, options or other rights or upon the issuance of any such convertible securities (or upon the issuance of any warrants, options or any rights therefor) pursuant to subsections 6(i) or 6(j) hereof.

(i) In case the Company shall issue any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above, and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such warrants, options or other rights on the date of issuance of such warrants, options or other rights shall be less than the Current Market Price as of the date of issuance of such warrants, options or other rights, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable pursuant to such warrants, options or other rights shall be deemed to have been issued as of the date of issuance of such warrants, options or rights, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such warrants, options, or other rights plus the minimum consideration to be received by the Company for the issuance of Additional Shares of Common Stock pursuant to such warrants, options, or other rights. Notwithstanding any other language in this
Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock.

(j) In case the Company shall issue any securities convertible into Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such convertible securities on the date of issuance of such convertible securities shall be less than the Current Market Price as of the date of issuance of such convertible securities, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable upon the conversion or exchange of all such convertible securities shall be deemed to have been issued as of the date of issuance of such convertible securities, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such convertible securities plus the minimum consideration to be received by the Company for the issuance of such Additional Shares of Common Stock pursuant to the terms of such convertible securities. No adjustment of the Exercise Price shall be made under this subsection upon the issuance of any

convertible securities that are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights therefor, if any such adjustments shall previously have been made upon the issuance of such warrants, options or other rights pursuant to subsection 6(i) hereof. Notwithstanding any other language in this Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any securities convertible into Additional Shares of Common Stock.

(k) Whenever there shall be any change in the Exercise Price under this Section 6, then there shall be an adjustment (to the nearest thousandth) in the Warrant Number, which adjustment shall become effective at the time such change in the Exercise Price becomes effective and shall be made by multiplying the Warrant Number in effect immediately before such change in the Exercise Price by a fraction the numerator of which is the Exercise Price immediately before such change and the denominator of which is the Exercise Price immediately after such change.

(l) The following provisions will be applicable to the making of adjustments in the Exercise Price hereinabove provided in this Section 6:

Additional Shares of Common Stock or warrants, options or other rights or convertible securities a consideration equal to the amount of such dividend so paid or satisfied.

(m) For the purpose of any computation under subsection (c) of
Section 2, Section 3 or Section 6, the current market price per share of Common Stock (the "Current Market Price") on any day shall be deemed to be the closing price per share as of the earlier of the last trading day prior to the date in question or the day before the Ex Date (as defined below) with respect to the issuance, payment or distribution. For this purpose, the term "Ex Date," when used with respect to the issuance, payment or distribution, shall mean the first date on which the Common Stock trades regular way on the applicable securities exchange or in the applicable securities market without the right to receive such issuance or distribution. The closing price for each day shall be (i) as reported in the Wall Street Journal (Eastern Edition) on the Nasdaq National Market System, (ii) if the Common Stock is not listed or admitted to trading on the Nasdaq National Market System, as reported in the Wall Street Journal (Eastern Edition) on the SmallCap Market or the principal national securities exchange on which the Common Stock is listed or admitted to trading or (iii) if not listed or admitted to trading on the Nasdaq National Market System, on the SmallCap Market or on any national securities exchange, as determined in good faith by the Board of Directors of Company for that purpose. In the event that the Board of Directors of the Company determines the Current Market Price pursuant to the preceding sentence, the Holder may, at its sole discretion, cause the Company to engage external independent appraisers selected by the Holder to determine the Current Market Price, which determination shall be binding. In the event that the Current Market Price determined by such independent appraisers differs from the Current Market Price determined by the Board of Directors of the Company by five percent (5%) or more and such difference is adverse to the interests of Holder, the Company shall bear the costs and expenses related to the independent audit; otherwise, the Holder shall bear such costs and expenses.

(n) No adjustment in the Exercise Price shall be required unless such adjustment (plus any adjustments not previously made by reason of this subsection (n)) would require an increase or decrease of at least 1% in such Exercise Price; provided, however, that any adjustments that by reason of this subsection (n) are not required to be made shall be carried forward and taken into account in any subsequent adjustment. All calculations under this subsection (n) shall be made to the nearest cent or to the nearest 1/100 of a share of Common Stock, as the case may be. Notwithstanding the foregoing, any adjustment required by this subsection (n) shall be made no later than the expiration of the right to exercise the Warrant or a portion thereof.

(o) Whenever the Exercise Price and Warrant Number is adjusted as herein provided:

(i) the Company shall compute the adjusted Exercise Price and Warrant Number in accordance with Section 6 and shall prepare a certificate signed by the treasurer of the Company setting forth the adjusted Exercise Price and Warrant Number and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be filed with any transfer agent; and

(ii) a notice stating that the Exercise Price and Warrant Number have been adjusted and setting forth the adjusted Exercise Price and Warrant Number shall forthwith be required, and as soon as practicable after it is required, such notice (together with a copy of the certificate prepared under
Section 6(o)(i) hereof) shall be mailed by the Company to the Holder of the Warrant at its last address as shall appear in the Warrant Register (as defined in Section 7(a)).

(p) In case:

(i) the Company shall declare a dividend or other distribution on its Common Stock (other than a dividend payable exclusively in cash that would not cause an adjustment to the Exercise Price to take place pursuant to Section 6 above);

(ii) the Company or any of its subsidiaries shall make a tender offer for the Common Stock;

(iii) the Company shall authorize the granting to all Holders of its Common Stock of rights, options or warrants to subscribe for or purchase any shares of capital stock of any class;

(iv) of any reclassification of the Common Stock (other than a subdivision or combination of its outstanding shares of Common Stock), or of any consolidation, merger or share exchange to which the Company is a party and for which approval of any stockholders of the Company is required, or of the sale or transfer of all or substantially all of the assets of the Company; or

(v) of the voluntary of involuntary dissolution, liquidation or winding up of the Company;

then the Company shall cause to be filed with any warrant agent, and shall cause to be mailed to the Holder of this Warrant at its last address as shall appear in the Warrant Register, at least ten days prior to the effective date hereinafter specified, a notice stating (A) the date on which a record has been taken for the purpose of such dividend, distribution or grant of rights, options or warrants, or, if record is not to be taken, the date as of which the identity of the holders of Common Stock of record entitled to such dividend, distribution, rights, options or warrants is to be determined, or (B) the date on which such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up. Neither the failure to give such notice nor any defect therein shall affect the legality or validity of the proceedings described in clauses
(i) through (v) of this subsection (p).

(q) For the purpose of this Section 6,

(i) "Additional Shares of Common Stock" shall mean all shares of Common Stock issued by the Company, except:

(a) shares of Common Stock outstanding as of the date hereof;

(b) shares of Common Stock issuable upon the exercise of warrants, including this Warrant, which are outstanding on the date hereof; and

(c) shares of Common Stock (and/or options, warrants or other Common Stock purchase rights) issued or to be issued to employees, officers or directors of, or advisors to the Company, pursuant to compensation plans, agreements or other arrangements that are approved by the Company's Board of Directors.

(ii) "Common Stock" shall mean the Company's Common Stock and any other shares of capital stock of the Company of any class, or series within a class, whether now or hereafter authorized, which has the right to participate in the distribution of earnings or assets of the Company without limit as to amount or percentage.

(d) Compliance with Securities Laws.

(i) The Holder of this Warrant, by acceptance hereof, acknowledges that the transfer of this Warrant and the Warrant Shares is subject to the Holder's compliance with the provisions of the Securities Act and any applicable state securities laws in respect of any such transfer.

(ii) The certificate or certificates representing any Warrant Shares acquired upon exercise of this Warrant, and any Common Stock or other securities issued in respect of such Warrant Shares upon any stock split, stock dividend, recapitalization, merger, consolidation or similar event, shall be stamped or otherwise imprinted with the following legend (unless such a legend is no longer required under the Securities Act):

THE TRANSACTION IN WHICH THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ACQUIRED WAS NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES REPRESENTED BY THIS CERTIFICATE SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL

IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO
SUCH EFFECT HAS BEEN PROVIDED.

(iii) The Company shall not be required to register the transfer of this Warrant or the Warrant Shares on the books of the Company unless the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company that this Warrant or the Warrant Shares, as applicable, are eligible for transfer without registration under the Securities Act; provided, however, that no such opinion of counsel shall be necessary in order to effectuate a transfer of this Warrant or any of the Warrant Shares (A) in accordance with the provisions of Rule 144(k) promulgated under the Securities Act or (B) with respect to the Warrant Shares, in accordance with the intended method of disposition set forth in any registration statement filed by the Company and covering the Warrant Shares pursuant to the Registration Rights Agreement.

(iv) The conditions precedent imposed by this subsection (d) upon the transferability of this Warrant and the Warrant Shares shall cease and terminate as to this Warrant and any of the Warrant Shares (A) when such securities shall have been registered under the Securities Act and sold or otherwise disposed of in accordance with the intended method of disposition by the seller or sellers thereof set forth in the registration statement covering such securities, (B) at such time as the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company to the effect that the restrictive legend on such securities is no longer required in order to establish compliance with the provisions of the Securities Act, or (C) when such securities are transferred pursuant to Rule 144 or become transferable in accordance with the provisions of Rule 144(k) promulgated under the Securities Act. Whenever the conditions imposed by this subsection (d) shall terminate as hereinabove provided with respect to any of the Warrant Shares, the holder of any such securities bearing the legend set forth in Section 7(d)(ii) shall be entitled to receive from the Company, without expense (except for the payment of any applicable transfer taxes) and as expeditiously as possible, new stock certificates not bearing such legend.

(a) during the term of this Warrant, the Company will reserve a sufficient number of shares of authorized and unissued Common Stock to provide for the issuance of Common Stock, which shares shall be duly authorized, fully paid and non-assessable, upon the exercise of this Warrant and, from time to time, will take all steps necessary to amend its Certificate of Incorporation to provide sufficient reserves of shares of Common Stock issuable upon exercise of the Warrant;

(b) the Company will not, by amendment of its Certificate of Incorporation or through reorganization, consolidation, merger, dissolution or sale of assets, or by any other voluntary act, avoid or seek to avoid the observance or performance of any of the covenants, stipulations or conditions to be observed or performed hereunder by the Company;

(c) all shares that may be issued upon exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein, will be free from all taxes,

liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously or otherwise specified herein); and

(d) issuance of this Warrant by the Company shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock upon the exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein.

IN WITNESS WHEREOF, CONCURRENT COMPUTER CORPORATION has caused this Warrant

to be executed by its authorized officer.

Dated: January 15, 2002

CONCURRENT COMPUTER CORPORATION

By:   /s/ Steven R. Norton
   ------------------------------------

Name: Steven R. Norton
      ---------------------------------

Title: Executive Vice President and CFO
       --------------------------------

Exhibit 4.8

THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THIS WARRANT SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT HAS BEEN PROVIDED.

Warrant No. 4 Date: August 10, 2002

WARRANT TO PURCHASE COMMON STOCK
OF
CONCURRENT COMPUTER CORPORATION

Void after 5:00 P.M. (United States Eastern Time) on August 10, 2006, unless extended as provided herein.

This certifies that, for value received, receipt and sufficiency of which are hereby acknowledged, Comcast Holdings, Inc., or its registered assigns (the "HOLDER"), is entitled, subject to the terms and conditions set forth below, to purchase from Concurrent Computer Corporation, a Delaware corporation (the "COMPANY"), one thousand five hundred and two (1,502) (the "WARRANT NUMBER") validly issued, fully paid and nonassessable shares (the "WARRANT SHARES") of Common Stock of the Company, par value $0.01 per share (the "COMMON STOCK"), subject to adjustment as provided herein, at a purchase price equal to $5.707 per share (the "EXERCISE PRICE").

The term "WARRANT" as used herein shall mean this Warrant, and any warrants delivered in substitution or exchange therefor as provided herein.

the Business Day (as defined in Section 6(i)) following such Saturday, Sunday or recognized holiday, (b) in the event that, on the expiration date of this Warrant, the Company is then required, pursuant to an effective demand therefor under that certain Registration Rights Agreement of even date herewith between the Company and the initial Holder hereof (the "REGISTRATION RIGHTS AGREEMENT") to use its reasonable best efforts to effect, or is in the process of effecting, a registration under the Securities Act of 1933, as amended (the "SECURITIES ACT") for a public offering in which Warrant Shares are entitled to be included as provided in the Registration Rights Agreement, or if the Company is in default of any such obligations to register the sale of such Common Stock, the right to exercise this Warrant shall continue until the later of 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which such registration shall have become effective or the 30th day following the date all such defaults shall have been cured, and (c) in the event that, on the expiration date of this Warrant, the Holder and the Company are in the process of complying with the provisions of the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR ACT"), in accordance with the provisions of
Section 2(d) below, the right to exercise this Warrant shall continue until 5:00 P.M. (United States Eastern Time) on the 30th day following the date on which any waiting period under the HSR Act applicable to the exercise of the Warrant shall have expired or been terminated.

(a) This Warrant may be exercised by the Holder, in whole or in part, by (i) the surrender of this Warrant to the Company, with the Notice of Exercise annexed hereto duly completed and executed on behalf of the Holder, at the office of the Company (or such other office or agency of the Company as it may designate by notice in writing to the Holder at the address of the Holder appearing on the books of the Company) during the Exercise Period and (ii) the delivery of payment to the Company of the Exercise Price for the number of Warrant Shares specified in the Notice of Exercise in any manner specified in subsection (c) of this Section 2.

(b) The Company agrees that such Warrant Shares shall be deemed to be issued to the Holder as the record holder of such Warrant Shares as of the close of business on the date on which this Warrant shall have been surrendered and payment made for the Warrant Shares as aforesaid. A stock certificate or certificates for the Warrant Shares specified in the Notice of Exercise shall be delivered to the Holder as promptly as practicable, and in any event within ten days thereafter. If this Warrant shall have been exercised only in part, the Company shall, at the time of delivery of the stock certificate or certificates, deliver to the Holder a new Warrant evidencing the rights to purchase the remaining Warrant Shares, which new Warrant shall in all other respects be identical with this Warrant. No adjustments shall be made on Warrant Shares issuable on the exercise of this Warrant for any cash dividends paid or payable to holders of record of Common Stock prior to the date as of which the Holder shall be deemed to be the record holder of such Warrant Shares.

(c) The Exercise Price shall be payable (i) in cash or its equivalent, payable by wire transfer of immediately available funds to a bank account specified by the Company or by certified or bank cashiers' check in lawful money of the United States of America; (ii) by surrendering to the Company the right to purchase a number of Warrant Shares equal to the product obtained by multiplying the number of Warrant Shares to be purchased (including any

Warrant Shares to be surrendered) by a fraction, the numerator of which is the Exercise Price and the denominator of which is the Current Market Price (as defined in Section 6(i) below) of the Common Stock on the date of exercise of the Warrant, or (iii) in any combination of (i) or (ii). In the event the Exercise Price is to be paid, in whole or in part, in accordance with the payment method described in clause (ii), and compliance with the provisions of the HSR Act is required in accordance with subsection (d) of this Section 2 prior to the consummation of such exercise, the Current Market Price of the Common Stock shall be calculated as of the date on which the Holder notifies the Company of its decision to exercise the Warrant, pending compliance with the provisions of the HSR Act, rather than the date of the consummation of such exercise.

(d) The Holder agrees that any exercise of this Warrant is, to the extent applicable, subject to compliance with the provisions of the HSR Act. The Company agrees that, in the event that the exercise of this Warrant by the Holder requires compliance with any provisions of the HSR Act, the Company shall cooperate with the Holder in connection with any such filings by (i) making all filings required to be made on the Company's part under the HSR Act and (ii) promptly furnishing, or causing to be furnished, any information that may be required by the Federal Trade Commission or the Department of Justice under the HSR Act.

(a) In case the Company shall pay or make a dividend or other distribution on any class of capital stock of the Company in Common Stock or any other security convertible into or exchangeable for shares of Common Stock (other than any rights, options or warrants described in subsection (b) of this
Section 6), the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for determination of stockholders entitled to receive such dividend or other distribution shall be reduced by multiplying such Exercise Price by a fraction of which (i) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination and (ii) the denominator shall be the sum of (A) such number of shares referred to in clause (i) and (B) the total number of shares of Common Stock constituting such dividend or other distribution (or, in the case of a dividend or distribution of securities convertible into or exchangeable for shares of Common Stock, the total number of shares of Common Stock underlying such securities), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination. For the purposes of this subsection (a), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

(b) In case the Company shall hereafter issue rights, options or warrants to all holders of its Common Stock entitling them to subscribe for or purchase shares of Common Stock or any other security convertible into or exchangeable for shares of Common Stock (such rights, options or warrants not being available on an equivalent basis to Holders of the Warrants upon exercise) at a price per share less than the Current Market Price of the Common Stock on the date fixed for the determination of stockholders entitled to receive such rights, options or warrants (other than pursuant to a dividend reinvestment plan), (i) the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the date fixed for such determination shall be reduced by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of holders of Common Stock entitled to receive such rights, options or warrants by a fraction of which (A) the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock that the aggregate of the offering price of the total number of shares of Common Stock so offered for subscription or purchase would purchase at such Current Market Price and (B) the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase (or such number of shares of Common Stock underlying any convertible securities so offered for subscription or purchase), such reduction to become effective immediately prior to the opening of business on the next Business Day following the date fixed for such determination (for the purposes of this subsection (b), the number of shares of Common Stock at any time outstanding shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock), and (ii) if any such rights, options or warrants expire or terminate without having been exercised or are exercised for a consideration different from that utilized in the computation of any adjustment or adjustments on account of such rights, options or warrants, the Exercise Price with respect to any Warrant not theretofore exercised shall be readjusted such that the Exercise Price would be the same as would have resulted had such adjustment been made without regard to the issuance of such expired or terminated rights, options or warrants or based

upon the actual consideration received upon exercise thereof, as the case may be, which readjustment shall become effective upon such expiration, termination or exercise, as applicable; provided, however, that all readjustments in the Exercise Price based upon any expiration, termination or exercise for a different consideration of any such right, option or warrant, in the aggregate, shall not cause the Exercise Price to exceed the Exercise Price immediately prior to the time such rights, options or warrants were initially issued (without regard to any other adjustments of such number under this subsection
(b) that may have been made since the date of the issuance of such rights, options or warrants).

(c) In case the outstanding shares of Common Stock shall be subdivided into a greater number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such subdivision becomes effective shall be proportionately reduced, and, conversely, in case the outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Exercise Price in effect immediately prior to the opening of business on the next Business Day following the day upon which such combination becomes effective shall be proportionately increased.

(d) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets (including securities, but excluding any rights, options or warrants referred to in subsection (b) of this Section 6, any dividend or distribution paid exclusively in cash and any dividend referred to in subsection (a) of this
Section 6), the Exercise Price shall be adjusted so that the same shall equal the price determined by multiplying the Exercise Price in effect immediately prior to the close of business on the date fixed for the determination of stockholders entitled to receive such distribution by a fraction of which (i) the numerator shall be the Current Market Price at the close of business on the date fixed for such determination less the then fair market value of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock , and (ii) the denominator shall be such Current Market Price, such adjustment to become effective immediately prior to the opening of business on the next Business Day following the date fixed for the determination of stockholders entitled to receive such distribution.

(e) The Company may make such reductions in the Exercise Price, in addition to those required by subsections (a), (b), (c) and (d) of this Section 6, as it considers to be advisable in order that any event treated for Federal income tax purposes as a dividend of stock or stock rights shall not be taxable to the recipients.

(f) In case of any reclassification, recapitalization or other change in the outstanding securities of the class issuable upon exercise of this Warrant (including any such reclassification, recapitalization or other change upon a consolidation or merger in which the Company is the continuing corporation, but not including any transactions for which an adjustment is provided in subsection (c), (d) or (g) of this Section 6), the Company shall execute and deliver to the Holder a new warrant certificate, satisfactory in form and substance to the Holder and without payment of any additional consideration therefor, providing that the Holder shall have the right thereafter, during the period such Warrant shall be outstanding, to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such reclassification, recapitalization or other change by a holder of the number of shares of

Common Stock issuable upon exercise of this Warrant had it been exercised immediately prior to such reclassification, recapitalization or other change. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (f) shall similarly apply to successive reclassifications, recapitalizations and other changes in the outstanding securities of the class issuable upon exercise of this Warrant.

(g) In case of any consolidation of the Company with, or merger of the Company into, any other entity, any merger of another entity into the Company (other than a merger that does not result in any reclassification, conversion, exchange or cancellation of outstanding shares of the Common Stock) or any sale or transfer of all or substantially all of the assets of the Company, in each case in which this Warrant remains in full force and effect, the provisions of this Warrant shall be immediately and automatically amended, without any further action on the part of the Company or the Holder, to the extent necessary to entitle the Holder to exercise such Warrant into the kind and amount (if any) of securities, cash and other property receivable upon such consolidation, merger, sale of transfer by a holder of the number of shares of Common Stock that would have otherwise been issuable upon exercise of this Warrant had it been exercised immediately prior to such consolidation, merger, sale or transfer. If the holders of the Common Stock may elect from choices the kind or amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer, then for the purpose of this Section 6, the kind and amount of securities, cash and other property receivable upon such consolidation, merger, sale or transfer shall be deemed to be the choice specified by the Holder, which specification shall be made by the Holder by the later of (i) ten Business Days after the Holder is provided with a final version of all information required by law or regulation to be furnished to holders of Common Stock concerning such choice, or, if no such information is required, ten Business Days after the Holder is provided with a final version of all information that was otherwise furnished to the holders of Common Stock concerning such choice, and (ii) the last time at which holders of Common Stock are permitted to make their specification known to the Company. If the Holder fails to make any specification, the Holder's choice shall be deemed to be whatever choice is made by a plurality of holders of Common Stock not affiliated with the Company or the other person to the merger or consolidation. Such new Warrant shall provide for adjustments that, for events subsequent to the effective date of such new Warrant, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 6. The above provisions of this subsection (g) shall similarly apply to successive consolidations, mergers, sales or transfers.

(h) If the Company, at any time within nine (9) months following the issuance of this Warrant and while the Warrant remains outstanding and unexpired, shall issue any Additional Shares of Common Stock (as defined below)
(otherwise than as provided in the foregoing subsections 6(a) through 6(g) above) at a price per share less, or for other consideration lower, than the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, or without consideration, then upon such issuance the Exercise Price shall be adjusted to that price determined by multiplying the Exercise Price by a fraction (i) the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to the issuance of such Additional Shares of Common Stock plus the number of shares of Common

Stock which the aggregate consideration for the total number of such Additional Shares of Common Stock so issued would purchase at the Current Market Price as of the date of issuance of such Additional Shares of Common Stock, and (ii) the denominator of which shall be the total number of shares of Common Stock outstanding immediately after the issuance of such Additional Shares of Common Stock. No adjustment of the Exercise Price shall be made under this subsection 6(h) upon the issuance of any Additional Shares of Common Stock which are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights or pursuant to the exercise of any conversion or exchange rights in any convertible securities if any such adjustments shall previously have been made upon the issuance of any such warrants, options or other rights or upon the issuance of any such convertible securities (or upon the issuance of any warrants, options or any rights therefor) pursuant to subsections 6(i) or 6(j) hereof.

(i) In case the Company shall issue any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above, and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such warrants, options or other rights on the date of issuance of such warrants, options or other rights shall be less than the Current Market Price as of the date of issuance of such warrants, options or other rights, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable pursuant to such warrants, options or other rights shall be deemed to have been issued as of the date of issuance of such warrants, options or rights, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such warrants, options, or other rights plus the minimum consideration to be received by the Company for the issuance of Additional Shares of Common Stock pursuant to such warrants, options, or other rights. Notwithstanding any other language in this
Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any warrants, options or other rights to subscribe for or purchase any Additional Shares of Common Stock.

(j) In case the Company shall issue any securities convertible into Additional Shares of Common Stock during the nine (9) month period referred to in Section 6(h) above and the price per share for which Additional Shares of Common Stock may be issuable pursuant to the terms of such convertible securities on the date of issuance of such convertible securities shall be less than the Current Market Price as of the date of issuance of such convertible securities, then upon such issuance the Exercise Price shall be adjusted as provided in subsection 6(h) hereof on the basis that (i) the maximum number of Additional Shares of Common Stock issuable upon the conversion or exchange of all such convertible securities shall be deemed to have been issued as of the date of issuance of such convertible securities, and (ii) the aggregate consideration for such maximum number of Additional Shares of Common Stock shall be deemed to be the consideration received by the Company for the issuance of such convertible securities plus the minimum consideration to be received by the Company for the issuance of such Additional Shares of Common Stock pursuant to the terms of such convertible securities. No adjustment of the Exercise Price shall be made under this subsection upon the issuance of any

convertible securities that are issued pursuant to the exercise of any warrants, options or other subscription or purchase rights therefor, if any such adjustments shall previously have been made upon the issuance of such warrants, options or other rights pursuant to subsection 6(i) hereof. Notwithstanding any other language in this Section 6 to the contrary, the adjustments required under this Section 6, and the issuance of a new Warrant pursuant to Section 2(b), shall not be deemed, for purposes of further adjustments, to be an issuance of any securities convertible into Additional Shares of Common Stock.

(k) Whenever there shall be any change in the Exercise Price under this Section 6, then there shall be an adjustment (to the nearest thousandth) in the Warrant Number, which adjustment shall become effective at the time such change in the Exercise Price becomes effective and shall be made by multiplying the Warrant Number in effect immediately before such change in the Exercise Price by a fraction the numerator of which is the Exercise Price immediately before such change and the denominator of which is the Exercise Price immediately after such change.

(l) The following provisions will be applicable to the making of adjustments in the Exercise Price hereinabove provided in this Section 6:

Additional Shares of Common Stock or warrants, options or other rights or convertible securities a consideration equal to the amount of such dividend so paid or satisfied.

(m) For the purpose of any computation under subsection (c) of
Section 2, Section 3 or Section 6, the current market price per share of Common Stock (the "Current Market Price") on any day shall be deemed to be the closing price per share as of the earlier of the last trading day prior to the date in question or the day before the Ex Date (as defined below) with respect to the issuance, payment or distribution. For this purpose, the term "Ex Date," when used with respect to the issuance, payment or distribution, shall mean the first date on which the Common Stock trades regular way on the applicable securities exchange or in the applicable securities market without the right to receive such issuance or distribution. The closing price for each day shall be (i) as reported in the Wall Street Journal (Eastern Edition) on the Nasdaq National Market System, (ii) if the Common Stock is not listed or admitted to trading on the Nasdaq National Market System, as reported in the Wall Street Journal (Eastern Edition) on the SmallCap Market or the principal national securities exchange on which the Common Stock is listed or admitted to trading or (iii) if not listed or admitted to trading on the Nasdaq National Market System, on the SmallCap Market or on any national securities exchange, as determined in good faith by the Board of Directors of Company for that purpose. In the event that the Board of Directors of the Company determines the Current Market Price pursuant to the preceding sentence, the Holder may, at its sole discretion, cause the Company to engage external independent appraisers selected by the Holder to determine the Current Market Price, which determination shall be binding. In the event that the Current Market Price determined by such independent appraisers differs from the Current Market Price determined by the Board of Directors of the Company by five percent (5%) or more and such difference is adverse to the interests of Holder, the Company shall bear the costs and expenses related to the independent audit; otherwise, the Holder shall bear such costs and expenses.

(n) No adjustment in the Exercise Price shall be required unless such adjustment (plus any adjustments not previously made by reason of this subsection (n)) would require an increase or decrease of at least 1% in such Exercise Price; provided, however, that any adjustments that by reason of this subsection (n) are not required to be made shall be carried forward and taken into account in any subsequent adjustment. All calculations under this subsection (n) shall be made to the nearest cent or to the nearest 1/100 of a share of Common Stock, as the case may be. Notwithstanding the foregoing, any adjustment required by this subsection (n) shall be made no later than the expiration of the right to exercise the Warrant or a portion thereof.

(o) Whenever the Exercise Price and Warrant Number is adjusted as herein provided:

(i) the Company shall compute the adjusted Exercise Price and Warrant Number in accordance with Section 6 and shall prepare a certificate signed by the treasurer of the Company setting forth the adjusted Exercise Price and Warrant Number and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be filed with any transfer agent; and

(ii) a notice stating that the Exercise Price and Warrant Number have been adjusted and setting forth the adjusted Exercise Price and Warrant Number shall forthwith be required, and as soon as practicable after it is required, such notice (together with a copy of the certificate prepared under
Section 6(o)(i) hereof) shall be mailed by the Company to the Holder of the Warrant at its last address as shall appear in the Warrant Register (as defined in Section 7(a)).

(p) In case:

(i) the Company shall declare a dividend or other distribution on its Common Stock (other than a dividend payable exclusively in cash that would not cause an adjustment to the Exercise Price to take place pursuant to Section 6 above);

(ii) the Company or any of its subsidiaries shall make a tender offer for the Common Stock;

(iii) the Company shall authorize the granting to all Holders of its Common Stock of rights, options or warrants to subscribe for or purchase any shares of capital stock of any class;

(iv) of any reclassification of the Common Stock (other than a subdivision or combination of its outstanding shares of Common Stock), or of any consolidation, merger or share exchange to which the Company is a party and for which approval of any stockholders of the Company is required, or of the sale or transfer of all or substantially all of the assets of the Company; or

(v) of the voluntary of involuntary dissolution, liquidation or winding up of the Company;

then the Company shall cause to be filed with any warrant agent, and shall cause to be mailed to the Holder of this Warrant at its last address as shall appear in the Warrant Register, at least ten days prior to the effective date hereinafter specified, a notice stating (A) the date on which a record has been taken for the purpose of such dividend, distribution or grant of rights, options or warrants, or, if record is not to be taken, the date as of which the identity of the holders of Common Stock of record entitled to such dividend, distribution, rights, options or warrants is to be determined, or (B) the date on which such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, share exchange, sale, transfer, dissolution, liquidation or winding up. Neither the failure to give such notice nor any defect therein shall affect the legality or validity of the proceedings described in clauses
(i) through (v) of this subsection (p).

(q) For the purpose of this Section 6,

(i) "Additional Shares of Common Stock" shall mean all shares of Common Stock issued by the Company, except:

(a) shares of Common Stock outstanding as of the date hereof;

(b) shares of Common Stock issuable upon the exercise of warrants, including this Warrant, which are outstanding on the date hereof; and

(c) shares of Common Stock (and/or options, warrants or other Common Stock purchase rights) issued or to be issued to employees, officers or directors of, or advisors to the Company, pursuant to compensation plans, agreements or other arrangements that are approved by the Company's Board of Directors.

(ii) "Common Stock" shall mean the Company's Common Stock and any other shares of capital stock of the Company of any class, or series within a class, whether now or hereafter authorized, which has the right to participate in the distribution of earnings or assets of the Company without limit as to amount or percentage.

(d) Compliance with Securities Laws.

(i) The Holder of this Warrant, by acceptance hereof, acknowledges that the transfer of this Warrant and the Warrant Shares is subject to the Holder's compliance with the provisions of the Securities Act and any applicable state securities laws in respect of any such transfer.

(ii) The certificate or certificates representing any Warrant Shares acquired upon exercise of this Warrant, and any Common Stock or other securities issued in respect of such Warrant Shares upon any stock split, stock dividend, recapitalization, merger, consolidation or similar event, shall be stamped or otherwise imprinted with the following legend (unless such a legend is no longer required under the Securities Act):

THE TRANSACTION IN WHICH THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ACQUIRED WAS NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES REPRESENTED BY THIS CERTIFICATE SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN COMPLIANCE WITH ANY APPLICABLE STATE SECURITIES LAWS, OR (B) IN A TRANSACTION THAT QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS AND FOR WHICH AN OPINION OF COUNSEL

IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY TO
SUCH EFFECT HAS BEEN PROVIDED.

(iii) The Company shall not be required to register the transfer of this Warrant or the Warrant Shares on the books of the Company unless the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company that this Warrant or the Warrant Shares, as applicable, are eligible for transfer without registration under the Securities Act; provided, however, that no such opinion of counsel shall be necessary in order to effectuate a transfer of this Warrant or any of the Warrant Shares (A) in accordance with the provisions of Rule 144(k) promulgated under the Securities Act or (B) with respect to the Warrant Shares, in accordance with the intended method of disposition set forth in any registration statement filed by the Company and covering the Warrant Shares pursuant to the Registration Rights Agreement.

(iv) The conditions precedent imposed by this subsection (d) upon the transferability of this Warrant and the Warrant Shares shall cease and terminate as to this Warrant and any of the Warrant Shares (A) when such securities shall have been registered under the Securities Act and sold or otherwise disposed of in accordance with the intended method of disposition by the seller or sellers thereof set forth in the registration statement covering such securities, (B) at such time as the Company shall have been provided with an opinion of counsel in form and substance reasonably satisfactory to the Company to the effect that the restrictive legend on such securities is no longer required in order to establish compliance with the provisions of the Securities Act, or (C) when such securities are transferred pursuant to Rule 144 or become transferable in accordance with the provisions of Rule 144(k) promulgated under the Securities Act. Whenever the conditions imposed by this subsection (d) shall terminate as hereinabove provided with respect to any of the Warrant Shares, the holder of any such securities bearing the legend set forth in Section 7(d)(ii) shall be entitled to receive from the Company, without expense (except for the payment of any applicable transfer taxes) and as expeditiously as possible, new stock certificates not bearing such legend.

(a) during the term of this Warrant, the Company will reserve a sufficient number of shares of authorized and unissued Common Stock to provide for the issuance of Common Stock, which shares shall be duly authorized, fully paid and non-assessable, upon the exercise of this Warrant and, from time to time, will take all steps necessary to amend its Certificate of Incorporation to provide sufficient reserves of shares of Common Stock issuable upon exercise of the Warrant;

(b) the Company will not, by amendment of its Certificate of Incorporation or through reorganization, consolidation, merger, dissolution or sale of assets, or by any other voluntary act, avoid or seek to avoid the observance or performance of any of the covenants, stipulations or conditions to be observed or performed hereunder by the Company;

(c) all shares that may be issued upon exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein, will be free from all taxes,

liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously or otherwise specified herein); and

(d) issuance of this Warrant by the Company shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock upon the exercise of this Warrant and payment of the Exercise Price, in accordance with the provisions set forth herein.

IN WITNESS WHEREOF, CONCURRENT COMPUTER CORPORATION has caused this Warrant

to be executed by its authorized officer.

Dated: August 10, 2002

CONCURRENT COMPUTER CORPORATION

By:   /s/ Steven R. Norton
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Name: Steven R. Norton
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Title: Executive Vice President and CFO
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