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                                                                     EXHIBIT 4.1

                         REGISTRATION RIGHTS AGREEMENT


        This REGISTRATION RIGHTS AGREEMENT dated June 28, 2002 (the "Agreement")
is entered into by and among Science Applications International Corporation, a
Delaware corporation (the "Company"), and the several Initial Purchasers listed
in Schedule 1 hereto (the "Initial Purchasers"), for whom J.P. Morgan Securities
Inc. is acting as representative (the "Representative").

        The Company and the Initial Purchasers are parties to the Purchase
Agreement dated June 21, 2002 (the "Purchase Agreement"), which provides for the
sale by the Company to the Initial Purchasers of $550,000,000 aggregate
principal amount of the Company's 6 1/4% Notes due 2012 (the "2012 Notes"), and
$250,000,000 aggregate principal amount of the Company's 7 1/8% Notes due 2032
(the "2032 Notes", and together with the 2012 Notes, the "Securities"). As an
inducement to the Initial Purchasers to enter into the Purchase Agreement, the
Company has agreed to provide to the Initial Purchasers and their direct and
indirect transferees the registration rights set forth in this Agreement. The
execution and delivery of this Agreement is a condition to the closing under the
Purchase Agreement.

        In consideration of the foregoing, the parties hereto agree as follows:

        1. Definitions. As used in this Agreement, the following terms shall
have the following meanings:

        "Business Day" shall mean any day that is not a Saturday, Sunday or
other day on which commercial banks in New York City are authorized or required
by law to remain closed.

        "Closing Date" shall mean the Closing Date as defined in the Purchase
Agreement.

        "Company" shall have the meaning set forth in the preamble and shall
also include the Company's successors.

        "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended from time to time.

        "Exchange Dates" shall have the meaning set forth in Section 2(a)(ii)
hereof.

        "Exchange Offer" shall mean the exchange offer by the Company of
Exchange Securities for Registrable Securities pursuant to Section 2(a) hereof.

        "Exchange Offer Registration" shall mean a registration under the
Securities Act effected pursuant to Section 2(a) hereof.

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        "Exchange Offer Registration Statement" shall mean an exchange offer
registration statement on Form S-4 (or, if applicable, on another appropriate
form) and all amendments and supplements to such registration statement, in each
case including the Prospectus contained therein, all exhibits thereto and any
document incorporated by reference therein.

        "Exchange Securities" shall mean notes issued by the Company under the
Indenture containing terms identical to the 2012 Notes and the 2032 Notes,
respectively (except that the Exchange Securities will not be subject to
restrictions on transfer or to any increase in annual interest rate for failure
to comply with this Agreement) and to be offered to Holders of the 2012 Notes
and the 2032 Notes, respectively, in exchange for Securities pursuant to the
Exchange Offer.

        "Holders" shall mean the Initial Purchasers, for so long as they own any
Registrable Securities, and each of their successors, assigns and direct and
indirect transferees who become owners of Registrable Securities under the
Indenture; provided that for purposes of Sections 4 and 5 of this Agreement, the
term "Holders" shall include Participating Broker-Dealers.

        "Initial Purchasers" shall have the meaning set forth in the preamble.

        "Indenture" shall mean the Indenture relating to the Securities dated as
of June 28, 2002 between the Company and JPMorgan Chase Bank, as trustee, and as
the same may be amended from time to time in accordance with the terms thereof.

        "Majority Holders" shall mean the Holders of a majority of the aggregate
principal amount of outstanding Registrable Securities; provided that whenever
the consent or approval of Holders of a specified percentage of Registrable
Securities is required hereunder, Registrable Securities owned directly or
indirectly by the Company or any of its affiliates shall not be counted in
determining whether such consent or approval was given by the Holders of such
required percentage or amount.

        "Participating Broker-Dealers" shall have the meaning set forth in
Section 4(a) hereof.

        "Person" shall mean an individual, partnership, limited liability
company, corporation, trust or unincorporated organization, or a government or
agency or political subdivision thereof.

        "Prospectus" shall mean the prospectus included in a Registration
Statement, including any preliminary prospectus, and any such prospectus as
amended or supplemented by any prospectus supplement, including a prospectus
supplement with respect to the terms of the offering of any portion of the
Registrable Securities covered by a Shelf Registration Statement, and by all


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other amendments and supplements to such prospectus, and in each case including
any document incorporated by reference therein.

        "Purchase Agreement" shall have the meaning set forth in the preamble.

        "Registrable Securities" shall mean the Securities; provided that the
Securities shall cease to be Registrable Securities (i) when a Registration
Statement with respect to such Securities has been declared effective under the
Securities Act and such Securities have been exchanged or disposed of pursuant
to such Registration Statement, (ii) when such Securities are eligible to be
sold pursuant to Rule 144(k) (or any similar provision then in force, but not
Rule 144A) under the Securities Act or (iii) when such Securities cease to be
outstanding.

        "Registration Expenses" shall mean any and all expenses incident to
performance of or compliance by the Company with this Agreement, including
without limitation: (i) all SEC, stock exchange or National Association of
Securities Dealers, Inc. registration and filing fees, (ii) all fees and
expenses incurred in connection with compliance with state securities or blue
sky laws (including reasonable fees and disbursements of counsel for any
Underwriters or Holders in connection with blue sky qualification of any
Exchange Securities or Registrable Securities), (iii) all expenses of any
Persons in preparing or assisting in preparing, word processing, printing and
distributing any Registration Statement, any Prospectus and any amendments or
supplements thereto, any underwriting agreements, securities sales agreements or
other similar agreements and any other documents relating to the performance of
and compliance with this Agreement, (iv) all rating agency fees, (v) all fees
and disbursements relating to the qualification of the Indenture under
applicable securities laws, (vi) the fees and disbursements of the Trustee and
its counsel, (vii) the fees and disbursements of counsel for the Company and, in
the case of a Shelf Registration Statement, the reasonable fees and
disbursements of one counsel for the Holders (which counsel shall be selected by
the Majority Holders and which counsel may also be counsel for the Initial
Purchasers) and (viii) the fees and disbursements of the independent public
accountants of the Company, including the expenses of any special audits or
"comfort" letters required by or incident to the performance of and compliance
with this Agreement, but excluding fees and expenses of counsel to the
Underwriters (other than fees and expenses set forth in clause (ii) above) or
the Holders and underwriting discounts and commissions and transfer taxes, if
any, relating to the sale or disposition of Registrable Securities by a Holder.

        "Registration Statement" shall mean any registration statement of the
Company that covers any of the Exchange Securities or Registrable Securities
pursuant to the provisions of this Agreement and all amendments and supplements
to any such registration statement, including post-effective amendments, in each
case including the Prospectus contained therein, all exhibits thereto and any
document incorporated by reference therein.


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        "SEC" shall mean the Securities and Exchange Commission.

        "Securities Act" shall mean the Securities Act of 1933, as amended from
time to time.

        "Shelf Effectiveness Period" shall have the meaning set forth in Section
2(b) hereof.

        "Shelf Registration" shall mean a registration effected pursuant to
Section 2(b) hereof.

        "Shelf Registration Statement" shall mean a "shelf" registration
statement of the Company that covers all the Registrable Securities (but no
other securities unless approved by the Holders whose Registrable Securities are
to be covered by such Shelf Registration Statement) on an appropriate form under
Rule 415 under the Securities Act, or any similar rule that may be adopted by
the SEC, and all amendments and supplements to such registration statement,
including post-effective amendments, in each case including the Prospectus
contained therein, all exhibits thereto and any document incorporated by
reference therein.

        "Trust Indenture Act" shall mean the Trust Indenture Act of 1939, as
amended from time to time.

        "Trustee" shall mean the trustee with respect to the Securities under
the Indenture.

        "Underwriter" shall have the meaning set forth in Section 3 hereof.

        "Underwritten Offering" shall mean an offering in which Registrable
Securities are sold to an Underwriter for reoffering to the public.

        2. Registration Under the Securities Act. (a) To the extent not
prohibited by any applicable law or applicable interpretations of the staff of
the SEC (the "Staff"), the Company shall use its reasonable best efforts to (i)
cause to be filed an Exchange Offer Registration Statement covering an offer to
the Holders to exchange all the Registrable Securities for Exchange Securities
and (ii) have such Registration Statement remain effective until 180 days after
the closing of the Exchange Offer. The Company shall commence the Exchange Offer
promptly after the Exchange Offer Registration Statement is declared effective
by the SEC and use its reasonable best efforts to complete the Exchange Offer
not later than 60 days after such effective date.

        The Company shall commence the Exchange Offer by mailing the related
Prospectus, appropriate letters of transmittal and other accompanying documents
to each Holder stating, in addition to such other disclosures as are required by
applicable law:


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(i)     that the Exchange Offer is being made pursuant to this Agreement and
        that all Registrable Securities validly tendered and not properly
        withdrawn will be accepted for exchange;

(ii)    the dates of acceptance for exchange (which shall be a period of at
        least 20 Business Days from the date such notice is mailed) (the
        "Exchange Dates");

(iii)   that any Registrable Security not tendered will remain outstanding and
        continue to accrue interest but will not retain any rights under this
        Agreement;

(iv)    that any Holder electing to have a Registrable Security exchanged
        pursuant to the Exchange Offer will be required to surrender such
        Registrable Security, together with the appropriate letters of
        transmittal, to the institution and at the address (located in the
        Borough of Manhattan, The City of New York) and in the manner specified
        in the notice, prior to the close of business on the last Exchange Date;
        and

(v)     that any Holder will be entitled to withdraw its election, not later
        than the close of business on the last Exchange Date, by sending to the
        institution and at the address (located in the Borough of Manhattan, The
        City of New York) specified in the notice, a telegram, telex, facsimile
        transmission or letter setting forth the name of such Holder, the
        principal amount of Registrable Securities delivered for exchange and a
        statement that such Holder is withdrawing its election to have such
        Securities exchanged.

        As a condition to participating in the Exchange Offer, a Holder will be
required to represent to the Company that (i) any Exchange Securities to be
received by it will be acquired in the ordinary course of its business, (ii) at
the time of the commencement of the Exchange Offer it has no arrangement or
understanding with any Person to participate in the distribution (within the
meaning of the Securities Act) of the Exchange Securities in violation of the
provisions of the Securities Act, (iii) it is not an "affiliate" (within the
meaning of Rule 405 under Securities Act) of the Company and (iv) if such Holder
is a broker-dealer that will receive Exchange Securities for its own account in
exchange for Registrable Securities that were acquired as a result of
market-making or other trading activities, then such Holder will deliver a
Prospectus in connection with any resale of such Exchange Securities.

        As soon as practicable after the last Exchange Date, the Company shall:

(i)     accept for exchange Registrable Securities or portions thereof validly
        tendered and not properly withdrawn pursuant to the Exchange Offer; and

(ii)    deliver, or cause to be delivered, to the Trustee for cancellation all
        Registrable Securities or portions thereof so accepted for exchange by
        the Company and issue, and cause the Trustee to promptly authenticate
        and


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        deliver to each Holder, Exchange Securities equal in principal amount to
        the principal amount of the Registrable Securities surrendered by such
        Holder.

        The Company shall use its reasonable best efforts to complete the
Exchange Offer as provided above and shall comply with the applicable
requirements of the Securities Act, the Exchange Act and other applicable laws
and regulations in connection with the Exchange Offer. The Exchange Offer shall
not be subject to any conditions, other than that the Exchange Offer does not
violate any applicable law or applicable interpretations of the Staff of the
SEC.

        (b) In the event that (i) the Company determines that the Exchange Offer
Registration provided for in Section 2(a) above is not available or may not be
completed as soon as practicable after the last Exchange Date because it would
violate any applicable law or applicable interpretations of the Staff of the
SEC, (ii) the Exchange Offer is not for any other reason completed by January
28, 2003 or (iii) the Exchange Offer has been completed and in the opinion of
counsel for the Initial Purchasers, a Registration Statement must be filed and a
Prospectus must be delivered by the Initial Purchasers in connection with any
offering or sale of Registrable Securities originally purchased and still held
by the Initial Purchasers, the Company shall use its reasonable best efforts to
cause to be filed as soon as practicable after such determination, date or
notice of such opinion of counsel is given to the Company, as the case may be, a
Shelf Registration Statement providing for the sale of all the Registrable
Securities by the Holders thereof and to have such Shelf Registration Statement
declared effective by the SEC. To the extent a Shelf Registration Statement is
required to be filed pursuant to clause (ii) but the Exchange Offer is completed
on a date later than January 28, 2003, upon consummation of the Exchange Offer
the Company will no longer be required to file, make effective or continue the
effectiveness of the Shelf Registration Statement.

        In the event that the Company is required to file a Shelf Registration
Statement solely as a result of the matters referred to in clause (iii) of the
preceding sentence, the Company shall use its reasonable best efforts to file
and have declared effective by the SEC both an Exchange Offer Registration
Statement pursuant to Section 2(a) with respect to all Registrable Securities
and a Shelf Registration Statement (which may be a combined Registration
Statement with the Exchange Offer Registration Statement) with respect to offers
and sales of Registrable Securities held by the Initial Purchasers after
completion of the Exchange Offer.

        The Company agrees to use its reasonable best efforts to keep the Shelf
Registration Statement continuously effective until the earlier of (i) two years
from the Closing Date, (ii) expiration of the period referred to in Rule 144(k)
under the Securities Act with respect to the Registrable Securities or (iii)
such shorter period that will terminate when all the Registrable Securities
covered by the Shelf


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Registration Statement have been sold pursuant to the Shelf Registration
Statement (the "Shelf Effectiveness Period"). The Company further agrees to
supplement or amend the Shelf Registration Statement and the related Prospectus
if required by the rules, regulations or instructions applicable to the
registration form used by the Company for such Shelf Registration Statement or
by the Securities Act or by any other rules and regulations thereunder for shelf
registration or if reasonably requested by a Holder of Registrable Securities
with respect to information relating to such Holder, and to use its reasonable
best efforts to cause any such amendment to become effective and such Shelf
Registration Statement and Prospectus to become usable as soon as thereafter
practicable. The Company agrees to furnish to the Holders of Registrable
Securities copies of any such supplement or amendment promptly after its being
used or filed with the SEC.

        (c) The Company shall pay all Registration Expenses in connection with
the registration pursuant to Section 2(a) and Section 2(b) hereof. Each Holder
shall pay all underwriting discounts and commissions and transfer taxes, if any,
relating to the sale or disposition of such Holder's Registrable Securities
pursuant to the Shelf Registration Statement.

        (d) An Exchange Offer Registration Statement pursuant to Section 2(a)
hereof or a Shelf Registration Statement pursuant to Section 2(b) hereof will
not be deemed to have become effective unless it has been declared effective by
the SEC.

        In the event that either the Exchange Offer is not completed or the
Shelf Registration Statement, if required hereby, is not declared effective on
or prior to January 28, 2003, the interest rate on the Registrable Securities
will be increased by 0.25% per annum, in each case until the Exchange Offer is
completed or the Shelf Registration Statement, if required hereby, is declared
effective by the SEC or the Securities become freely tradable under the
Securities Act.

        (e) The parties hereto agree that the liquidated damages provided for in
Section 2(d) constitute a reasonable estimate of and are intended to constitute
the sole damages that will be suffered by the Initial Purchasers and the Holders
by reason of the failure of the Company to comply with its obligations under
Section 2(a) and 2(b) hereof.

        3. Registration Procedures. In connection with its obligations pursuant
to Section 2(a) and Section 2(b) hereof, the Company shall as expeditiously as
possible:

        (a) prepare and file with the SEC a Registration Statement on the
appropriate form under the Securities Act, which form (x) shall be selected by
the Company, (y) shall, in the case of a Shelf Registration, be available for
the sale of the Registrable Securities by the selling Holders thereof and (z)
shall comply as to form in all material respects with the requirements of the
applicable form


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and include all financial statements required by the SEC to be filed therewith;
and use its reasonable best efforts to cause such Registration Statement to
become effective and remain effective for the applicable period in accordance
with Section 2 hereof;

        (b) prepare and file with the SEC such amendments and post-effective
amendments to each Registration Statement as may be necessary to keep such
Registration Statement effective for the applicable period in accordance with
Section 2 hereof and cause each Prospectus to be supplemented by any required
prospectus supplement and, as so supplemented, to be filed pursuant to Rule 424
under the Securities Act; and keep each Prospectus current during the period
described in Section 4(3) of and Rule 174 under the Securities Act that is
applicable to transactions by brokers or dealers with respect to the Registrable
Securities or Exchange Securities;

        (c) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities, to counsel for the Initial Purchasers, to counsel for
such Holders and to each Underwriter of an Underwritten Offering of Registrable
Securities, if any, without charge, as many copies of each Prospectus as they
may reasonably request, including each preliminary Prospectus, and any amendment
or supplement thereto, in order to facilitate the sale or other disposition of
the Registrable Securities thereunder; and the Company consents to the use of
such Prospectus and any amendment or supplement thereto in accordance with
applicable law by each of the selling Holders of Registrable Securities and any
such Underwriters in connection with the offering and sale of the Registrable
Securities covered by and in the manner described in such Prospectus or any
amendment or supplement thereto in accordance with applicable law;

        (d) use its reasonable best efforts to register or qualify the
Registrable Securities under all applicable state securities or blue sky laws of
such jurisdictions as any Holder of Registrable Securities covered by a
Registration Statement shall reasonably request in writing by the time the
applicable Registration Statement is declared effective by the SEC; cooperate
with the Holders in connection with any filings required to be made with the
National Association of Securities Dealers, Inc.; and do any and all other acts
and things that may be reasonably necessary or advisable to enable each Holder
to complete the disposition in each such jurisdiction of the Registrable
Securities owned by such Holder; provided that the Company shall not be required
to (i) qualify as a foreign corporation or other entity or as a dealer in
securities in any such jurisdiction where it would not otherwise be required to
so qualify, (ii) file any general consent to service of process in any such
jurisdiction; (iii) subject itself to taxation in any such jurisdiction if it is
not so subject; or (iv) make any change to its certificate of incorporation or
bylaws or any agreement between it and its stockholders;


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<PAGE>

        (e) in the case of a Shelf Registration, notify each Holder of
Registrable Securities, counsel for such Holders and counsel for the Initial
Purchasers promptly and, if requested by any such Holder or counsel, confirm
such advice in writing (i) when a Registration Statement has become effective
and when any post-effective amendment thereto has been filed and becomes
effective, (ii) of any request by the SEC or any state securities authority for
amendments and supplements to a Registration Statement and Prospectus or for
additional information after the Registration Statement has become effective,
(iii) of the issuance by the SEC or any state securities authority of any stop
order suspending the effectiveness of a Registration Statement or the initiation
of any proceedings for that purpose, (iv) if, between the effective date of a
Registration Statement and the closing of any sale of Registrable Securities
covered thereby, the representations and warranties of the Company contained in
any underwriting agreement, securities sales agreement or other similar
agreement, if any, relating to an offering of such Registrable Securities cease
to be true and correct in all material respects or if the Company receives any
notification with respect to the suspension of the qualification of the
Registrable Securities for sale in any jurisdiction or the initiation of any
proceeding for such purpose, (v) of the happening of any event during the period
a Shelf Registration Statement is effective that makes any statement made in
such Registration Statement or the related Prospectus untrue in any material
respect or that requires the making of any changes in such Registration
Statement or Prospectus in order to make the statements therein not misleading
and (vi) of any determination by the Company that a post-effective amendment to
a Registration Statement would be appropriate;

        (f) use its reasonable best efforts to obtain the withdrawal of any
order suspending the effectiveness of a Registration Statement at the earliest
possible moment and provide immediate notice to each Holder of the withdrawal of
any such order;

        (g) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities, without charge, at least one conformed copy of each
Registration Statement and any post-effective amendment thereto (without any
documents incorporated therein by reference or exhibits thereto, unless
requested);

        (h) in the case of a Shelf Registration, cooperate with the selling
Holders of Registrable Securities to facilitate the timely preparation and
delivery of certificates representing Registrable Securities to be sold and not
bearing any restrictive legends and enable such Registrable Securities to be
issued in such denominations and registered in such names (consistent with the
provisions of the Indenture) as the selling Holders may reasonably request at
least one Business Day prior to the closing of any sale of Registrable
Securities;

        (i) in the case of a Shelf Registration, upon the occurrence of any
event contemplated by Section 3(e)(v) hereof, use its reasonable best efforts to


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prepare and file with the SEC a supplement or post-effective amendment to a
Registration Statement or the related Prospectus or any document incorporated
therein by reference or file any other required document so that, as thereafter
delivered to purchasers of the Registrable Securities, such Prospectus will not
contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading; and the Company shall notify the
Holders of Registrable Securities to suspend use of the Prospectus as promptly
as practicable after the occurrence of such an event, and such Holders hereby
agree to suspend use of the Prospectus until the Company has amended or
supplemented the Prospectus to correct such misstatement or omission;

        (j) in the case of a Shelf Registration: a reasonable time prior to the
filing of any Registration Statement, any Prospectus, any amendment to a
Registration Statement or amendment or supplement to a Prospectus (excluding any
documents incorporated by reference therein), provide copies of such document to
the Initial Purchasers and their counsel and to the Majority Holders of
Registrable Securities and their counsel and make such of the representatives of
the Company as shall be reasonably requested by the Initial Purchasers or their
counsel and the Majority Holders of Registrable Securities or their counsel
available for discussion of such document, and the Company shall not, at any
time after initial filing of a Registration Statement, file any Prospectus, any
amendment of or supplement to a Registration Statement or a Prospectus
(excluding any documents incorporated by reference therein), of which the
Initial Purchasers and their counsel and the Majority Holders of Registrable
Securities and their counsel shall not have previously been advised and
furnished a copy or to which the Initial Purchasers or their counsel and the
Majority Holders or their counsel shall reasonably object, unless in the
Company's judgment such filing is necessary to comply with the securities laws
or to avoid penalties hereunder;

        (k) obtain a CUSIP number for all Exchange Securities or Registrable
Securities, as the case may be, not later than the effective date of a
Registration Statement;

        (l) cause the Indenture to be qualified under the Trust Indenture Act in
connection with the registration of the Exchange Securities or Registrable
Securities, as the case may be; cooperate with the Trustee and the Holders to
effect such changes to the Indenture as may be required for the Indenture to be
so qualified in accordance with the terms of the Trust Indenture Act; and
execute, and use its reasonable best efforts to cause the Trustee to execute,
all documents as may be required to effect such changes and all other forms and
documents required to be filed with the SEC to enable the Indenture to be so
qualified in a timely manner;

        (m) in the case of a Shelf Registration, make reasonably available for
inspection by a representative of the Majority Holders of the Registrable
Securities (an "Inspector"), any Underwriter participating in any disposition


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pursuant to such Shelf Registration Statement, and attorneys and accountants
designated by the Inspector, at reasonable times and in a reasonable manner, all
pertinent financial and other records, documents and properties of the Company
and use its reasonable best efforts to cause the officers, directors and
employees of the Company to supply all information reasonably requested by any
such Inspector, Underwriter, attorney or accountant in connection with a Shelf
Registration Statement; provided that if any such information is identified by
the Company as being confidential or proprietary, each Person receiving such
information shall take such actions as are reasonably necessary to protect the
confidentiality of such information to the extent such action is otherwise not
inconsistent with, an impairment of or in derogation of the rights and interests
of any Inspector, Holder or Underwriter);

        (n) in the case of a Shelf Registration, use its reasonable best efforts
to cause all Registrable Securities to be listed on any securities exchange or
any automated quotation system on which similar securities issued by the Company
are then listed if requested by the Majority Holders, to the extent such
Registrable Securities satisfy applicable listing requirements;

        (o) if reasonably requested by any Holder of Registrable Securities
covered by a Registration Statement, promptly incorporate in a Prospectus
supplement or post-effective amendment such information with respect to such
Holder as such Holder reasonably requests to be included therein and make all
required filings of such Prospectus supplement or such post-effective amendment
as soon as the Company has received notification of the matters to be
incorporated in such filing; and

        (p) in the case of a Shelf Registration, enter into such customary
agreements and take all such other actions in connection therewith (including
those requested by the Holders of a majority in principal amount of the
Registrable Securities being sold) in order to expedite or facilitate the
disposition of such Registrable Securities including, but not limited to, an
Underwritten Offering and in such connection, (i) to the extent possible, make
such representations and warranties to the Holders and any Underwriters of such
Registrable Securities with respect to the business of the Company and its
subsidiaries, the Registration Statement, Prospectus and documents incorporated
by reference or deemed incorporated by reference, if any, in each case, in form,
substance and scope as are customarily made by issuers to underwriters in
underwritten offerings and confirm the same if and when requested, (ii) if
requested by Majority Holders, use its reasonable best efforts to obtain
opinions of counsel to the Company (which counsel and opinions, in form, scope
and substance, shall be reasonably satisfactory to the Holders and such
Underwriters and their respective counsel) addressed to each selling Holder and
Underwriter of Registrable Securities, covering the matters customarily covered
in opinions requested in underwritten offerings, (iii) if requested by Majority
Holders, use its reasonable best efforts to obtain "comfort" letters from the
independent certified public accountants of the Company (and, if necessary, any


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<PAGE>

other certified public accountant of any subsidiary of the Company or of any
business acquired by the Company for which financial statements and financial
data are or are required to be included in the Registration Statement) addressed
to each selling Holder and Underwriter of Registrable Securities, such letters
to be in customary form and covering matters of the type customarily covered in
"comfort" letters in connection with underwritten offerings and (iv) use its
reasonable best efforts to deliver such documents and certificates as may be
reasonably requested by the Holders of a majority in principal amount of the
Registrable Securities being sold or the Underwriters, and which are customarily
delivered in underwritten offerings, to evidence the continued validity of the
representations and warranties of the Company made pursuant to clause (i) above
and to evidence compliance with any customary conditions contained in an
underwriting agreement.

        In the case of a Shelf Registration Statement, the Company may require
each Holder of Registrable Securities to furnish to the Company such information
regarding such Holder, including a selling stockholder questionnaire, and the
proposed disposition by such Holder of such Registrable Securities as the
Company may from time to time reasonably request in writing.

        In the case of a Shelf Registration Statement, each Holder of
Registrable Securities agrees that, upon receipt of any notice from the Company
of the happening of any event of the kind described in Section 3(e)(iii) or
3(e)(v) hereof, such Holder will forthwith discontinue disposition of
Registrable Securities pursuant to a Registration Statement until such Holder's
receipt of the copies of the supplemented or amended Prospectus contemplated by
Section 3(i) hereof and, if so directed by the Company, such Holder will deliver
to the Company all copies in its possession, other than permanent file copies
then in such Holder's possession, of the Prospectus covering such Registrable
Securities that is current at the time of receipt of such notice.

        If the Company shall give any such notice to suspend the disposition of
Registrable Securities pursuant to a Registration Statement, the Company shall
extend the period during which the Registration Statement shall be maintained
effective pursuant to this Agreement by the number of days during the period
from and including the date of the giving of such notice to and including the
date when the Holders shall have received copies of the supplemented or amended
Prospectus necessary to resume such dispositions. The Company may give any such
notice only twice during any 365-day period and any such suspensions shall not
exceed 45 days for each suspension and there shall not be more than two
suspensions in effect during any 365-day period.

        The Holders of Registrable Securities covered by a Shelf Registration
Statement who desire to do so may sell such Registrable Securities in an
Underwritten Offering. In any such Underwritten Offering, the investment banker
or investment bankers and manager or managers (the "Underwriters") that will
administer the offering will be selected by the Majority Holders of the
Registrable


                                       12
<PAGE>

Securities included in such offering, subject to the Company's consent, which
consent shall not be unreasonably withheld.

        4. Participation of Broker-Dealers in Exchange Offer. (a) The Staff of
the SEC has taken the position that any broker-dealer that receives Exchange
Securities for its own account in the Exchange Offer in exchange for Securities
that were acquired by such broker-dealer as a result of market-making or other
trading activities (a "Participating Broker-Dealer") may be deemed to be an
"underwriter" within the meaning of the Securities Act and must deliver a
prospectus meeting the requirements of the Securities Act in connection with any
resale of such Exchange Securities.

        The Company understands that it is the Staff's position that if the
Prospectus contained in the Exchange Offer Registration Statement includes a
plan of distribution containing a statement to the above effect and the means by
which Participating Broker-Dealers may resell the Exchange Securities, without
naming the Participating Broker-Dealers or specifying the amount of Exchange
Securities owned by them, such Prospectus may be delivered by Participating
Broker-Dealers to satisfy their prospectus delivery obligation under the
Securities Act in connection with resales of Exchange Securities for their own
accounts, so long as the Prospectus otherwise meets the requirements of the
Securities Act.

        (b) In light of the above, and notwithstanding the other provisions of
this Agreement, the Company agrees to amend or supplement the Prospectus
contained in the Exchange Offer Registration Statement, as would otherwise be
contemplated by Section 3(i), for a period of up to 180 days after the last
Exchange Date (as such period may be extended pursuant to the penultimate
paragraph of Section 3 of this Agreement), if requested by the Initial
Purchasers or by one or more Participating Broker-Dealers, in order to expedite
or facilitate the disposition of any Exchange Securities by Participating
Broker-Dealers consistent with the positions of the Staff recited in Section
4(a) above. The Company further agrees that Participating Broker-Dealers shall
be authorized to deliver such Prospectus during such period in connection with
the resales contemplated by this Section 4.

        (c) The Initial Purchasers shall have no liability to the Company or any
Holder with respect to any request that they may make pursuant to Section 4(b)
above.

        5. Indemnification and Contribution. (a) The Company agrees to indemnify
and hold harmless each Initial Purchaser and each Holder, their respective
affiliates and each Person, if any, who controls any Initial Purchaser or any
Holder within the meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act, from and against any and all losses, claims, damages and
liabilities (including, without limitation, reasonable legal fees and other
expenses incurred in connection with any suit, action or proceeding or any claim
asserted), joint or several, that are caused by any untrue statement or alleged
untrue


                                       13
<PAGE>

statement of a material fact contained in any Registration Statement or any
Prospectus or any omission or alleged omission to state therein a material fact
required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading, except insofar as such losses, claims, damages or liabilities are
caused by any untrue statement or omission or alleged untrue statement or
omission made in reliance upon and in conformity with any information relating
to any Initial Purchaser or any Holder furnished to the Company in writing
through J.P. Morgan Securities Inc. or any selling Holder expressly for use
therein. In connection with any Underwritten Offering permitted by Section 3,
the Company will also indemnify the Underwriters, if any, selling brokers,
dealers and similar securities industry professionals participating in the
distribution, their respective affiliates and each Person who controls such
Persons (within the meaning of the Securities Act and the Exchange Act) to the
same extent as provided above with respect to the indemnification of the
Holders, if requested in connection with any Registration Statement.
Notwithstanding the foregoing, with respect to any untrue statement in or
omission from any related preliminary prospectus, the indemnity agreement
contained in this Section 5 shall not inure to the benefit of any Holder from
whom the person asserting any such loss, claim, damage, liability or action
received Securities or Exchange Securities to the extent that such loss, claim,
damage, liability or action of or with respect to such Holder results from the
fact that both (i) a copy of the final prospectus (excluding any documents
incorporated by reference therein) was not sent or given to such person at or
prior to the written confirmation of the sale of such Securities or Exchange
Securities to such person and (ii) the untrue statement in or omission from the
related preliminary prospectus was corrected in the final prospectus unless, in
either case, such failure to deliver the final prospectus was a result of
non-compliance by the Company with Section 2(b), 3(c) and 3(g).

        (b) Each Holder agrees, severally and not jointly, to indemnify and hold
harmless the Company, the Initial Purchasers and the other selling Holders,
their respective affiliates, the directors of the Company, each officer of the
Company who signed the Registration Statement and each Person, if any, who
controls the Company, any Initial Purchaser and any other selling Holder within
the meaning of Section 15 of the Securities Act or Section 20 of the Exchange
Act to the same extent as the indemnity set forth in paragraph (a) above, but
only with respect to any losses, claims, damages or liabilities that are caused
by any untrue statement or omission or alleged untrue statement or omission made
in reliance upon and in conformity with any information relating to such Holder
furnished to the Company in writing by such Holder expressly for use in any
Registration Statement and any Prospectus.

        (c) If any suit, action, proceeding (including any governmental or
regulatory investigation), claim or demand shall be brought or asserted against
any Person in respect of which indemnification may be sought pursuant to either
paragraph (a) or (b) above, such Person (the "Indemnified Person") shall
promptly notify the Person against whom such indemnification may be sought


                                       14
<PAGE>

(the "Indemnifying Person") in writing; provided that the failure to notify the
Indemnifying Person shall not relieve it from any liability that it may have
under this Section 5 except to the extent that it has been materially prejudiced
(through the forfeiture of substantive rights or defenses) by such failure; and
provided, further, that the failure to notify the Indemnifying Person shall not
relieve it from any liability that it may have to an Indemnified Person
otherwise than under this Section 5. If any such proceeding shall be brought or
asserted against an Indemnified Person and it shall have notified the
Indemnifying Person thereof, the Indemnifying Person shall retain counsel
reasonably satisfactory to the Indemnified Person to represent the Indemnified
Person and any others entitled to indemnification pursuant to this Section 5
that the Indemnifying Person may designate in such proceeding and shall pay the
fees and expenses of such counsel related to such proceeding. In any such
proceeding, any Indemnified Person shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such Indemnified Person unless (i) the Indemnifying Person and the Indemnified
Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person
has failed within a reasonable time to retain counsel reasonably satisfactory to
the Indemnified Person; (iii) the Indemnified Person shall have reasonably
concluded that there may be legal defenses available to it that are different
from or in addition to those available to the Indemnifying Person; or (iv) the
named parties in any such proceeding (including any impleaded parties) include
both the Indemnifying Person and the Indemnified Person and representation of
both parties by the same counsel would be inappropriate due to actual or
potential differing interests between them. It is understood and agreed that the
Indemnifying Person shall not, in connection with any proceeding or related
proceeding in the same jurisdiction, be liable for the fees and expenses of more
than one separate firm (in addition to any local counsel) for all Indemnified
Persons, and that all such fees and expenses shall be reimbursed. Any such
separate firm (x) for any Initial Purchaser, its affiliates and any control
Persons of such Initial Purchaser shall be designated in writing by J.P. Morgan
Securities Inc., (y) for any Holder, its affiliates and any control Persons of
such Holder shall be designated in writing by the Majority Holders and (z) in
all other cases shall be designated in writing by the Company. The Indemnifying
Person shall not be liable for any settlement of any proceeding effected without
its written consent, but if settled with such consent or if there be a final
judgment for the plaintiff, the Indemnifying Person agrees to indemnify each
Indemnified Person from and against any loss or liability by reason of such
settlement or judgment. Notwithstanding the foregoing sentence, if at any time
an Indemnified Person shall have requested that an Indemnifying Person reimburse
the Indemnified Person for the reasonable fees and expenses of counsel as
contemplated by this paragraph, the Indemnifying Person shall be liable for any
settlement of any proceeding effected without its written consent if (i) such
settlement is entered into more than 60 days after receipt by the Indemnifying
Person of such request and (ii) the Indemnifying Person shall not have
reimbursed the Indemnified Person in accordance with such request prior to the
date of such settlement. No Indemnifying Person shall, without the written


                                       15
<PAGE>

consent of the Indemnified Person, effect any settlement of any pending or
threatened proceeding in respect of which any Indemnified Person is or could
have been a party and indemnification could have been sought hereunder by such
Indemnified Person, unless such settlement (A) includes an unconditional release
of such Indemnified Person, in form and substance reasonably satisfactory to
such Indemnified Person, from all liability on claims that are the subject
matter of such proceeding and (B) does not include any statement as to or any
admission of fault, culpability or a failure to act by or on behalf of any
Indemnified Person.

        (d) If the indemnification provided for in paragraphs (a) and (b) above
is unavailable to an Indemnified Person or insufficient in respect of any
losses, claims, damages or liabilities referred to therein, then each
Indemnifying Person under such paragraph, in lieu of indemnifying such
Indemnified Person thereunder, shall contribute to the amount paid or payable by
such Indemnified Person as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company from the offering of the Securities and the
Exchange Securities, on the one hand, and by the Holders from receiving
Securities or Exchange Securities registered under the Securities Act, on the
other hand, or (ii) if the allocation provided by clause (i) is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) but also the relative fault of the
Company on the one hand and the Holders on the other in connection with the
statements or omissions that resulted in such losses, claims, damages or
liabilities, as well as any other relevant equitable considerations. The
relative fault of the Company on the one hand and the Holders on the other shall
be determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the Company or by the Holders
and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.

        (e) The Company and the Holders agree that it would not be just and
equitable if contribution pursuant to this Section 5 were determined by pro rata
allocation (even if the Holders were treated as one entity for such purpose) or
by any other method of allocation that does not take account of the equitable
considerations referred to in paragraph (d) above. The amount paid or payable by
an Indemnified Person as a result of the losses, claims, damages and liabilities
referred to in paragraph (d) above shall be deemed to include, subject to the
limitations set forth above, any legal or other expenses reasonably incurred by
such Indemnified Person in connection with any such action or claim.
Notwithstanding the provisions of this Section 5, in no event shall a Holder be
required to contribute any amount in excess of the amount by which the total
price at which the Securities or Exchange Securities sold by such Holder exceeds
the amount of any damages that such Holder has otherwise been required to pay by
reason of such untrue or alleged untrue statement or omission or alleged
omission. No Person guilty of fraudulent misrepresentation (within the meaning


                                       16
<PAGE>

of Section 11(f) of the Securities Act) shall be entitled to contribution from
any Person who was not guilty of such fraudulent misrepresentation.

        (f) The remedies provided for in this Section 5 are not exclusive and
shall not limit any rights or remedies that may otherwise be available to any
Indemnified Person at law or in equity.

        (g) The indemnity and contribution provisions contained in this Section
5 shall remain operative and in full force and effect regardless of (i) any
termination of this Agreement, (ii) any investigation made by or on behalf of
the Initial Purchasers or any Holder, their respective affiliates or any Person
controlling any Initial Purchaser or any Holder, or by or on behalf of the
Company, its affiliates or the officers or directors of or any Person
controlling the Company, (iii) acceptance of any of the Exchange Securities and
(iv) any sale of Registrable Securities pursuant to a Shelf Registration
Statement.

        6. General.

        (a) No Inconsistent Agreements. The Company represents, warrants and
agrees that (i) the rights granted to the Holders hereunder do not in any way
conflict with and are not inconsistent with the rights granted to the holders of
any other outstanding securities issued or guaranteed by the Company under any
other agreement and (ii) the Company has not entered into, or on or after the
date of this Agreement will enter into, any agreement that is inconsistent with
the rights granted to the Holders of Registrable Securities in this Agreement or
otherwise conflicts with the provisions hereof.

        (b) Amendments and Waivers. The provisions of this Agreement, including
the provisions of this sentence, may not be amended, modified or supplemented,
and waivers or consents to departures from the provisions hereof may not be
given unless the Company has obtained the written consent of Holders of at least
a majority in aggregate principal amount of the outstanding Registrable
Securities affected by such amendment, modification, supplement, waiver or
consent; provided that no amendment, modification, supplement, waiver or consent
to any departure from the provisions of Section 5 hereof shall be effective as
against any Holder of Registrable Securities unless consented to in writing by
such Holder. Any amendments, modifications, supplements, waivers or consents
pursuant to this Section 6(b) shall be by a writing executed by each of the
parties hereto.

        (c) Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, telex, telecopier, or any courier guaranteeing overnight
delivery (i) if to a Holder, at the most current address given by such Holder to
the Company by means of a notice given in accordance with the provisions of this
Section 6(c), which address initially is, with respect to the Initial
Purchasers, the address set forth in the Purchase Agreement; (ii) if to the
Company, initially at the Company's


                                       17
<PAGE>

address set forth in the Purchase Agreement and thereafter at such other
address, notice of which is given in accordance with the provisions of this
Section 6(c); and (iii) to such other persons at their respective addresses as
provided in the Purchase Agreement and thereafter at such other address, notice
of which is given in accordance with the provisions of this Section 6(c). All
such notices and communications shall be deemed to have been duly given: at the
time delivered by hand, if personally delivered; five Business Days after being
deposited in the mail, postage prepaid, if mailed; when answered back, if
telexed; when receipt is acknowledged, if telecopied; and on the next Business
Day if timely delivered to an air courier guaranteeing overnight delivery.
Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the Trustee, at the
address specified in the Indenture.

        (d) Successors and Assigns. This Agreement shall inure to the benefit of
and be binding upon the successors, assigns and transferees of each of the
parties, including, without limitation and without the need for an express
assignment, subsequent Holders; provided that nothing herein shall be deemed to
permit any assignment, transfer or other disposition of Registrable Securities
in violation of the terms of the Purchase Agreement or the Indenture. If any
transferee of any Holder shall acquire Registrable Securities in any manner,
whether by operation of law or otherwise, such Registrable Securities shall be
held subject to all the terms of this Agreement, and by taking and holding such
Registrable Securities such Person shall be conclusively deemed to have agreed
to be bound by and to perform all of the terms and provisions of this Agreement
and such Person shall be entitled to receive the benefits hereof. The Initial
Purchasers (in their capacity as Initial Purchasers) shall have no liability or
obligation to the Company with respect to any failure by a Holder to comply
with, or any breach by any Holder of, any of the obligations of such Holder
under this Agreement.

        (e) Purchases and Sales of Securities. The Company shall not, and shall
use its reasonable best efforts to cause its affiliates (as defined in Rule 405
under the Securities Act) not to, purchase and then resell or otherwise transfer
any Registrable Securities.

        (f) Third Party Beneficiaries. Each Holder shall be a third party
beneficiary to the agreements made hereunder between the Company, on the one
hand, and the Initial Purchasers, on the other hand, and shall have the right to
enforce such agreements directly to the extent it deems such enforcement
necessary or advisable to protect its rights or the rights of other Holders
hereunder.

        (g) Counterparts. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.


                                       18
<PAGE>

        (h) Headings. The headings in this Agreement are for convenience of
reference only, are not a part of this Agreement and shall not limit or
otherwise affect the meaning hereof.

        (i) Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York.

        (j) Miscellaneous. This Agreement contains the entire agreement between
the parties relating to the subject matter hereof and supersedes all oral
statements and prior writings with respect thereto. If any term, provision,
covenant or restriction contained in this Agreement is held by a court of
competent jurisdiction to be invalid, void or unenforceable or against public
policy, the remainder of the terms, provisions, covenants and restrictions
contained herein shall remain in full force and effect and shall in no way be
affected, impaired or invalidated. The Company and the Initial Purchasers shall
endeavor in good faith negotiations to replace the invalid, void or
unenforceable provisions with valid provisions the economic effect of which
comes as close as possible to that of the invalid, void or unenforceable
provisions.


                                       19
<PAGE>

        IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                            SCIENCE APPLICATIONS
                                            INTERNATIONAL CORPORATION




                                            By:
                                               ---------------------------------
                                               Name:  William A. Roper, Jr.
                                               Title: Corporate Executive Vice
                                                      President

Confirmed and accepted as of the date first above written:

J.P. MORGAN SECURITIES INC.

For itself and on behalf of the
several Initial Purchasers

By:
   -----------------------------------
          Authorized Signatory


                                       20
<PAGE>

                                                                      Schedule I

<TABLE>
<CAPTION>
                                                        Principal             Principal
                                                        Amount of             Amount of
               Initial Purchaser                        2012 Notes            2032 Notes
               -----------------                       ------------          ------------
<S>                                                    <C>                   <C>
J.P. Morgan Securities Inc.                            $275,000,000          $125,000,000
Morgan Stanley & Co. Incorporated                       $68,750,000           $31,250,000
Salomon Smith Barney Inc.                               $68,750,000           $31,250,000
The Royal Bank of Scotland plc                          $27,500,000           $12,500,000
Tokyo-Mitsubishi International plc                      $27,500,000           $12,500,000
Wachovia Securities, Inc.                               $27,500,000           $12,500,000
BNY Capital Markets, Inc.                               $11,000,000            $5,000,000
McDonald Investments Inc.                               $11,000,000            $5,000,000
Mellon Financial Markets, LLC                           $11,000,000            $5,000,000
Mizuho International plc                                $11,000,000            $5,000,000
SG Cowen Securities Corporation                         $11,000,000            $5,000,000
                                                       ------------          ------------
                                          Total        $550,000,000          $250,000,000
</TABLE>

                                       21