Document:

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                                                                   Exhibit 10.84

                             SUN MICROSYSTEMS, INC.
                  U.S. NON-QUALIFIED DEFERRED COMPENSATION PLAN
                           AMENDED AS OF JUNE 30, 2002

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                                TABLE OF CONTENTS
                                                                            Page
                                                                            ----
1.    Purpose ............................................................     4

2.    Definitions ........................................................     4

3.    Eligibility ........................................................     6

4.    Election to Participate in Plan ....................................     6

5.    Accounts ...........................................................     7

6.    Deferral Increments and Growth .....................................     7

7.    Earnings or Losses on Accounts .....................................     7

8.    Certain In-Service Account Distributions ...........................     8

9.    Statements .........................................................     8

10.   Form and Time of Payment of Accounts ...............................     8

11.   Effect of Death of Participant .....................................     9

12.   General Duties of Trustee ..........................................    10

13.   Withholding Taxes ..................................................    10

14.   Participant's Unsecured Rights .....................................    10

15.   Non-assignability of Interests .....................................    11

16.   Limitation of Rights ...............................................    11

17.   Administration of the Plan .........................................    11

18.   Amendment or Termination of the Plan ...............................    11

19.   Choice of Law and Claims Procedure .................................    12

20.   Execution and Signature ............................................    12

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                             SUN MICROSYSTEMS, INC.
                  U.S. NON-QUALIFIED DEFERRED COMPENSATION PLAN
                           AMENDED AS OF JUNE 30, 2002

         Sun Microsystems, Inc. (the "Company"), acting on behalf of itself and
its U.S. subsidiaries, initially adopted the Sun Microsystems, Inc. U.S.
Non-Qualified Deferred Compensation Plan (the "Plan"), effective July 1, 1995

                                    RECITALS

         1. The Company maintains the Plan, a deferred compensation plan for the
benefit of a select group of management or highly compensated employees of the
Company as well as members of the Company's Board of Directors.

         2. Under the Plan, the Company is obligated to pay vested accrued
benefits to Plan Participants and their Beneficiary or Beneficiaries from the
Company's general assets.

         3. The Company intends to enter into an agreement (the "Trust
Agreement") with a person or persons, including an entity, who shall serve as
trustee (the "Trustee") under an irrevocable trust, to be used in connection
with the Plan (the "Trust").

         4. The Company intends to make contributions to the Trust so that such
contributions will be held by the Trust and invested, reinvested and
distributed, all in accordance with this Plan and the Trust Agreement.

         5. The Company intends that amounts contributed to the Trust and the
earnings thereon shall be used by the Trustee to satisfy the liabilities of the
Company under the Plan with respect to each Plan Participant for whom an Account
has been established and such utilization shall be in accordance with the
procedures set forth herein.

         6. The Company intends that the Trust be a "grantor trust" with the
principal and income of the Trust treated as assets and income of the Company
for federal and state income tax purposes.

         7. The Company intends that the assets of the Trust shall at all times
be subject to the claims of the general creditors of the Company as provided in
the Trust Agreement.

         8. The Company intends that the existence of the Trust shall not alter
the characterization of the Plan as "unfunded" for purposes of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA"), and shall not be
construed to provide income to Plan Participants under the Plan prior to actual
payment of the vested accrued benefits hereunder.

         NOW THEREFORE, the Company does hereby adopt this amended and restated
Plan as follows and does also hereby agree that the Plan shall be structured,
held and disposed of as follows:

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         1. Purpose: The Plan provides Participants an opportunity to defer
payment of a portion of:

            - Employee salary and incentive bonus/commissions (for Sales Vice
              Presidents and Directors);

            - Employee annual bonus awards; and

            - Board of Directors retainer payments.

         2. Definitions:

            (a)Account means a bookkeeping account established pursuant to
Section 5(a) for Compensation that is subject to a Participant's deferral
election.

            (b)Beneficiary means the person or persons designated by the
Participant or by the Plan under Section 11(b) to receive payment of the
Participant's Account in the event of the Participant's death.

            (c) Board means the Board of Directors of the Company, as
constituted from time to time.

            (d) Committee means the Benefits Plan Committee, appointed by the
Board from time to time.

            (e) Company means Sun Microsystems, Inc. and its U.S. subsidiaries.

            (f) Compensation means:

                (i) The amount of the Eligible Employee's base salary paid by

the Company or one of its U.S. subsidiaries; and

                (ii) The amount paid by the Company or one of its U.S.
subsidiaries to an Eligible Employee as an annual corporate bonus award and any
other bonus/incentive award that is approved by the Committee as earnings that
can be deferred under the Plan (some incentive/bonus awards will not be eligible
for deferral); and

                (iii) For Sales Vice Presidents and Directors, incentive
bonus/commissions; and

                (iv) In the case of an Eligible Board Member, the amount of his
or her director's fees from the Company, which includes only retainer payments.
Compensation does not include directors' expense reimbursements or meeting fees.

            For purposes of the foregoing, Compensation as described in clauses
(i), (ii) and (iii) shall be eligible for deferral only to the extent such
amounts are otherwise subject to U.S. payroll reporting and withholding.

            (g) Election Period means:

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                (i) Generally June of each year; and

                (ii) For newly hired vice presidents, at the sole discretion of
the Benefits Plan Committee, may be eligible to enroll within thirty (30) days
of hire.

                (iii) With respect to the Plan Restatement, September, 1997.

            (h) Eligible Board Member means a member of the Board (other than a
member who is also an Eligible Employee).

            (i) Eligible Employee means an officer of the Company or other
common-law employee of the Company or one of its U.S. subsidiaries.

            (j) Participant means an Eligible Board Member or an Eligible
Employee who has elected to defer Compensation.

            (k) Plan means this Sun Microsystems, Inc. U.S. Non-Qualified
Deferred Compensation Plan, as amended from time to time.

            (l) Plan Restatement means the amendment and restatement of the Plan
as approved by the Board on August 13, 1997.

            (m) Plan Restatement Effective Date means October 1, 1997.

            (n) Retirement Date means the last day of the month coinciding with
or following the Participant's termination of employment following the earlier
of his or her:

                (i) 55th birthday, if the Participant's full years of Service
with the Company added to Participant's age (in full years) equals or exceeds
65; or

                (ii) 20th year anniversary of Service.

            (o) Service means:

                (i) Employment as a common-law employee of the Company or one of
its subsidiaries; or

                (ii) Period served as an elected Board Member.

            A Participant's Service shall be determined by the Committee in its
sole discretion.

            (p) Total Disability has the same meaning as "Disability" under Sun
Microsystems, Inc. Comprehensive Welfare Plan.

            (q) Unforeseeable Emergency means a severe financial hardship to the
Participant resulting from:

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                (i) Sudden or unexpected illness or accident of either the
Participant or dependent of same; or

                (ii) Loss of the Participant's property due to casualty or other
extraordinary and unforeseeable circumstances beyond the control of the
Participant.

            Hardship shall not constitute an unforeseeable Emergency under the
Plan to the extent that it is, or may be, relieved by:

                (i) Reimbursement or compensation, by insurance or otherwise; or

                (ii) Liquidation of the Participant's assets to the extent that
the liquidation of such assets would not itself cause severe financial hardship.
Such assets shall include but not be limited to stock options, company stock,
and 401(k) plan balances.

            An Unforeseeable Emergency under the Plan does not include:

                (i) Sending a child to college; or

                (ii) Purchasing a home, per Rev. Proc. 95-64.

            (r) Year means the Company's fiscal year unless otherwise noted.

         3. Eligibility: Participation in the Plan is limited to Eligible Board
Members, and Eligible Employees, who are eligible to participate in the Plan if:

            (a) He or she is subject to U.S. income and social security taxes
and not covered under a non-U.S. retirement plan;

            (b) He or she is an officer, or his or her position is approved as a
director level, or higher; or

            (c) He or she has been designated expressly as an Eligible Employee
by the Committee.

            If a Participant receives a distribution described in Section 10(c),
the Participant shall be ineligible to participate in the Plan for the balance
of the Plan Year in which the distribution occurs and the following Plan Year.

         4. Election to Participate in Plan:

            (a) Deferral Election. A Participant may elect to participate in the
Plan by submitting an election in such forms as the Company may specify during
any Election Period.

            (b) Election Form. All deferral elections under this Section 4 shall
be made in a manner prescribed for this purpose by the Committee.

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         5. Accounts:

            (a) Establishment of Account. The Company shall establish an Account
for the terms of the Deferred Compensation Election.

            (b) Credits to Account. A Participant's Account shall be credited
with an amount equal to the percentage of each Compensation payment which would
have been payable currently to the Participant but for the terms of the Deferred
Compensation Election Form. Deferred Compensation for Participants shall be
credited to the Participant's Account as of the first day of the month in which
such deferred amounts would otherwise be paid to the Participant.

            (c) Vesting. Participants shall at all times be 100% vested in their
deferrals under the Plan and all earnings or losses allocable thereto.

         6. Deferral Increments and Growth:

            (a) The minimum deferral per year will be determined by the
Committee.

            (b) The Participant who is an Eligible Employee may elect to defer
(less any withholding requirements).

                (i) Up to 100% of any eligible annual bonus award; and

                (ii) Up to 60% of base salary and incentive awards/commissions.

            (c) The Participant who is an Eligible Board Member may elect to
defer (less any withholding requirements), up to 100% of their retainer payments
(to be credited to the account quarterly).

         7. Earnings or Losses on Accounts:

            (a) General Rule. Subject to Section 7(c) below, the amount in a
Participant's Account shall be adjusted for gain or loss based on the
performance of the investment options selected by the Participant in accordance
with Section 7(b). Gain or loss shall be computed as of the last day of the
month, using the closing price on the last business day of the month. All
distributions from the Account will be withdrawn at the end of the last day of
the month.

            (b) Designation of Investment Indices by the Committee. The
Committee shall specify two or more investment funds that shall serve as
benchmarks for the investment performance of amounts credited to the Accounts.
Accounts shall be adjusted to reflect the gain or loss, net of any allocable
costs or expenses, such accounts would experience had they actually been
invested in the specified funds at the relevant times. The Committee may vary
the available investment funds from time to time, but not more frequently than
quarterly. Effective July 1, 2000, a Participant may select his or her
investment options for new deferrals and contributions, or for amounts already
credited to his or her Account, once per calendar month effective as of the end
of the last day of the month and in such manner as the Committee may specify.

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         8.  Certain In-Service Account Distributions.

             (a) After Completion of Two Years of Plan Participation. Each
Participant may elect in his or her Deferred Compensation Election Form to have
one or more distributions of a specified percentage or dollar amount of his or
her Account, not more frequently than once in a Plan Year, commencing in his or
her third year of participation, provided that the Participant has not
terminated his or her Service with the Company. A Participant may delay once or
cancel such distribution at any time prior to the date which is one year prior
to the calendar year in which the originally scheduled distribution would take
place, but such election is otherwise irrevocable.

             (b) Previously Scheduled In-Service Distributions. Elections in
effect prior to the Plan Restatement Date for in-service distributions prior to
January 1, 2000 shall remain in full force and effect.

         9.  Statements: Quarterly, and/or at intervals determined by the
Committee, the Company shall prepare and deliver to each Participant a statement
listing the amount credited to such Account as of the applicable date.

         10. Form and Time of Payment of Accounts:

             (a) Timing and Method of Distribution of Accounts. In the event of
a Participant's termination of Service on or after his or her Retirement Date,
distribution of the value of the Participant's Account balance shall be made as
soon as practicable after such termination consistent with the form of
distribution specified on the Participant's election. Available forms shall
include either a lump sum payment or a series of installments. Accounts subject
to installment payouts shall continue to be adjusted for gains or losses in the
same manner as active Accounts. Notwithstanding the foregoing, the Participant
who is receiving an installment payout on or after his or her Retirement Date
may request a lump sum distribution of such Participant's Account. Any such lump
sum distribution shall be at the sole discretion of the Committee, and shall be
reduced by a penalty equal to ten percent (10%) of the amount otherwise
distributable, which penalty shall be forfeited to the Company. A Participant
may modify his or her elected form of distribution (i.e., lump sum or
installments) at any time prior to the date that is three years before his or
her retirement date. If a Participant modifies his or her elected form of
distribution but his or her retirement date is less than three years following
the date of the modification election, his or her prior elected form of
distribution shall apply.

             If the Participant terminates his or her service with the Company
prior to his or her Retirement Date, (other than on account of death), he or she
shall receive the value of his or her Account in one lump sum payment as soon as
practicable after such termination. The account balance is determined as of the
last day of the month in which he or she terminates his or her employment, based
on the indexed value of his or her investment options.

             If a Participant elects a distribution date prior to termination of
Service, the distribution will be paid as soon as reasonably practicable in a
lump sum after such distribution date.

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             (b) Disability or Emergency. In the event of Participant's Total
Disability or Unforeseeable Emergency, and upon application by such Participant,
the Committee may determine at its sole discretion that payment of all, or part,
of such Participant's Account shall be made in a different manner, or on an
earlier date than the time or times specified in Subsection (a) above. Payments
due to Participant's Total Disability or Unforeseeable Emergency shall be
permitted only to the extent reasonably required to satisfy the Participant's
need. The Participant's account will be valued on the last day of the month in
which the distribution request is approved.

             (c) Early Distribution Penalty. Upon application by a Participant,
the Committee may determine at its sole discretion that payments from such
Participant's Account shall be made in a different manner, or on an earlier date
than the time or times specified in Subsection (a) above. The Participant may
request the distribution only once a year and the minimum amount of distribution
is 50% of the Participant's account balance. All distributions under this
Subsection (c) shall be reduced by a penalty equal to 10 percent (10%) of the
amount otherwise distributable. The penalty is forfeited to the Company. A
Participant who receives a distribution under this Subsection (c) is ineligible
to participate in the Plan for the balance of the Plan Year in which the
distribution occurs and the following Plan Year.

         11. Effect of Death of Participant:

             (a) Distributions. In the event of a Participant's death while an
Eligible Employee or Eligible Board Member (except in the case of a
Participant's suicide during the first two years of their participation in the
Plan), the Participant's Account balance, together with an amount equal to two
times the sum of (i) the Participant's actual deferrals under the Plan after the
Plan Restatement Effective Date (exclusive of earnings), plus (ii) the
Participant's actual deferrals under the Plan before the Plan Restatement
Effective Date (exclusive of earnings) to the extent such deferrals are
scheduled to be distributed on or after January 1, 2000, shall be distributed to
the Participant's Beneficiary. Notwithstanding the foregoing, the amount to be
determined pursuant to this paragraph (a), shall not exceed Three Million
Dollars ($3,000,000). In the event of (i) a Participant's death while no longer
an Eligible Employee or Eligible Board Member (as applicable), or (ii) a
Participant's suicide during the first two years of their participation in the
Plan, the Account balance, if any, shall be distributed to the Participant's
Beneficiary. Any distributions pursuant to this paragraph shall be made to the
Beneficiary in three annual installments or, at the request of the Beneficiary
and subject to the Committee's approval, in a single lump sum, commencing in
either case as soon as reasonably practicable after the Participant's death. If
installment payments are made, the remaining account balance (during the period
of the installment payouts) shall cease to be credited with earnings on the
investment chosen by the deceased Participant, and instead shall be credited
with earnings based on a fixed rate of interest determined by the Committee in
its discretion from time to time.

             (b) Beneficiary Designation. Upon enrollment in the Plan, each
Participant shall file a prescribed form with the Company naming a person or
persons as the Beneficiary who will receive distributions payable under the Plan
in the event of the Participant's death. If the Participant does not name a
Beneficiary, or if none of the named Beneficiaries is living at the time payment
is due, then the Beneficiary shall be:

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                 (i) The spouse of the deceased Participant; or

                 (ii) The living children of the deceased Participant, in equal
shares, if no spouse of the Participant is living; or

                 (iii) The estate of the Participant if neither spouse nor
children of Participant are living.

             The Participant may change the designation of a Beneficiary at any
time in accordance with procedures established by the Committee. Designations of
a Beneficiary, or an amendment or revocation thereof, shall be effective only if
made in the prescribed manner and received by the Company prior to the
Participant's death.

         12. General Duties of Trustee:

             (a) Trustee Duties. The Trustee shall manage, invest and reinvest
the Trust Fund as provided in the Trust Agreement. The Trustee shall collect the
income on the Trust Fund, and make distributions therefrom, all as provided in
this Plan and in the Trust Agreement.

             (b) Company Contributions. While the Plan remains in effect, the
Company shall make contributions to the Trust Fund at least once each year. As
soon as practicable after the close of each Plan Year, the Company shall make an
additional contribution to the Trust Fund to the extent that previous
contributions to the Trust Fund for the current Plan Year are less than total
future liabilities (other than death benefits) created with respect to
Participants' Accounts as of the close of the current Plan Year. Contributions
to the Trust Fund are based on liabilities created with respect to Participants'
Accounts on and after the Plan Restatement Effective Date. The Trustee shall not
be liable for any failure by the Company to provide contributions sufficient to
pay all accrued benefits under the Plan in accordance with the terms of this
Plan.

         13. Withholding Taxes: All distributions under the Plan shall be
subject to reduction in order to reflect withholding tax obligations imposed by
law.

         14. Participant's Unsecured Rights: The Account of any Participant, and
such Participant's right to receive distributions from his or her Account, shall
be considered an unsecured claim against the general assists of the Company;
such Accounts are unfunded bookkeeping entries. The Company considers the Plan
to be unfunded for tax purposes and for purposes of Title I of ERISA. No
Participant shall have an interest in, or make claim against, any specified
asset of the Company pursuant to the Plan.

         15. Non-assignability of Interests: The interest of a Participant under
the Plan is not subject to option nor assignable by either voluntary or
involuntary assignment or by operation of law, including without limitation to:
bankruptcy, garnishment, attachment or other creditor's process. Any act in
violation of this Section 15 shall make the Plan void.

         16. Limitation of Rights:

             (a) Bonuses. Nothing in this Plan shall be construed to give any
Eligible

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Employee any right to be granted a bonus award.

             (b) Employment Rights. Neither the Plan nor deferral of any
Compensation, nor any other action taken pursuant to the Plan, shall constitute,
or be evidence of, any agreement or understanding, express or implied, that the
Company or any of its subsidiaries will employ an Eligible Employee for any
period of time, in any position at any particular rate of compensation. The
Company and its subsidiaries reserve the right to terminate an Eligible
Employee's Service at any time for any reason, except as otherwise expressly
provided in a written employment agreement.

         17. Administration of the Plan: The Plan shall be administered by the
Committee. The Committee shall have full power and authority to administer,
interpret, establish procedures for administering the Plan, prescribe forms, and
take any and all necessary actions in connection with the Plan. The Committee's
interpretation and construction of the Plan shall be conclusive and binding on
all persons. The Committee may appoint a plan administrator or any other agent
and delegate to them such powers and duties in connection with the
administration of the Plan as the Committee may from time to time prescribe. In
the event that any Participants are found to be ineligible, that is, not members
of a select group of management or highly compensated employees, according to a
determination made by the U.S. Department of Labor, the Committee shall take
whatever steps it deems necessary, in its sole discretion, to equitably protect
the interests of the affected Participants.

         18. Amendment or Termination of the Plan: The Board may amend, suspend,
or terminate the Plan at any time; provided, however, that no such action shall
reduce a Participant's Account under the Plan without the Participant's written
consent. In the event of termination of the Plan, the Accounts of Participants
shall continue to be credited with earnings until distributed pursuant to
Section 10, unless the Board prescribes an earlier time or different manner for
the payment of such Accounts. Without limiting the generality of the foregoing,
termination of the Plan following Change in Control shall constitute an event
giving rise to distribution of Accounts. In such event, the Company shall pay
all Account balances in a lump sum or in annual installments over three years
(with earnings), in its discretion, to Participants and Beneficiaries of
deceased Participants; and all deferrals and payment of benefits except as
provided above shall cease. For purposes of this Plan, the term "Change in
Control" shall mean the purchase or acquisition by any person, entity or group
of persons, within the meaning of Section 13(d) or 14(d) of the Securities
Exchange Act of 1934, as amended (the "Act"), or any comparable successor
provisions, of beneficial ownership (within the meaning of Rule 13d-3
promulgated under the Act) of 30% or more of either the outstanding shares of
common stock or the combined voting power of the Company's then outstanding
voting securities entitled to vote generally, where the approval by the
stockholders of the Company or a reorganization, merger or consolidation, in
each case with respect to which persons who are stockholders of the Company
immediately prior to such reorganization, merger or consolidation do not,
immediately thereafter, own more than 50% of the combined voting power entitled
to vote generally in the election of directors of the reorganized, merged or
consolidated Company's then outstanding securities, or a liquidation or
dissolution of the Company or of the sale of all or substantially all of the
Company's assets.

         19. Choice of Law and Claims Procedure:

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             (a) Choice of Law. The validity, interpretation, construction and
performance of the Plan shall be governed by ERISA, and, to the extent that they
are not preempted, by the laws of the State of California, excluding
California's choice-of-law provisions.

             (b) Claims and Review Procedure. In accordance with the regulations
of the U.S. Secretary of Labor, the Committee shall:

                 (i) Provide adequate notice in writing to any Participant or
Beneficiary whose claim for benefits under the Plan has been denied. Specific
reasons for such denial must be presented in a clear and precise manner intended
to be easily understood by such Participant or Beneficiary, and

                 (ii) Afford a reasonable opportunity for a full and fair review
before the Board to any Participant or Beneficiary whose claim for benefits has
been denied.

         20. Execution and Signature: To record the adoption of the Plan by the
Board, the Company has caused its duly authorized officer to affix the corporate
name hereto:

                                          SUN MICROSYSTEMS, INC.

                                          By: __________________________________
                                              Authorized Company Officer

                                       12<PAGE>
                                                                   Exhibit 10.94
                            PAID AND CANCELLED 2/8/02

                                 PROMISSORY NOTE

         For value received, the undersigned, Robert L. Long (the "Maker")
promises to pay to Sun Microsystems, Inc., a Delaware corporation (the
"Company"), or order, in lawful money of the United States, the sum of Three
Hundred Forty-Three Thousand Six Hundred Thirty-Four dollars ($343,634), plus
interest on the outstanding principal amount of this Promissory Note, at a
simple interest rate of 2.73% per annum.

         Repayment of the principal amount of this Promissory Note, together
with interest accrued thereon, shall be made in full on or before the end of the
fifteenth (15th) day following the date on which the Maker is informed by the
proper officer of the Company that the Company's trading window applicable to
officers subject to Section 16 of the Securities Exchange Act of 1934, as
amended, is open (the "Maturity Date"). All money paid toward the satisfaction
of this Promissory Note shall be applied first to the payment of expenses and
then of interest as required hereunder and then to the retirement of principal.

         No waiver of any rights or remedies hereunder shall be effective unless
in writing and signed by the holder; a waiver on one occasion shall not be
construed as a bar to or waiver of any right or remedy on a further occasion.

         The Maker agrees to pay all expenses incurred in collection of this
Promissory Note including reasonable attorneys' fees.

         The Maker shall have the right to prepay this Promissory Note in full
or in part at any prior to the Maturity Date, without penalty.

         The Maker and all endorsers of this Promissory Note hereby waive
presentment, demand, protest, notice of nonpayment and protest and any and all
lack of diligence or delays that may occur in the collection of this Promissory
Note.

         This Promissory Note, including all rights and obligations hereunder,
shall be governed by, construed and interpreted in all respects in accordance
with laws of the State of Delaware.

         If payment in full is not made at the time set out above, the Maker
hereby authorizes and directs the Company to deduct the amounts owed hereunder,
as they become due, from the wages, salary and other benefits and remuneration
owed Robert L. Long, in accordance with applicable laws, rules and regulations
and in such amounts as the Company shall deem appropriate, until payment in full
has been made. The failure or inability of the Company to make any such
deduction shall not relieve the Maker of his obligations hereunder.

           The obligation of payment under this Promissory Note is secured by a
pledge of certain shares of the Company's Common Stock owned by the Maker, under
the terms of a Pledge Agreement dated as of the date hereof and entered into
between the Maker and the Company (the "Pledge Agreement"), a copy of which is
attached hereto as Exhibit A, and is subject to the provisions thereof.
Notwithstanding the foregoing, the holder of this Promissory Note shall have
full recourse against the Maker and shall not be required to proceed against the
collateral securing the Promissory Note in the event of the occurrence of a
default or Event of Default under this Promissory Note, the Pledge Agreement or
the Stock Option Exercise Notice and Irrevocable Subscription Agreement executed
by [Maker] and attached hereto as Exhibit B.

Maker(s)                                                        Date

/s/ Robert L. Long                                        November 12, 2001

---------------------------------                         ----------------------

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                            PAID AND CANCELLED 2/8/02

                                 PROMISSORY NOTE

         For value received, the undersigned, Robert L. Long (the "Maker")
promises to pay to Sun Microsystems, Inc., a Delaware corporation (the
"Company"), or order, in lawful money of the United States, the sum of Two
Hundred Fifty Thousand dollars ($250,000), plus interest on the outstanding
principal amount of this Promissory Note, at a simple interest rate of 2.73% per
annum.

         Repayment of the principal amount of this Promissory Note, together
with interest accrued thereon, shall be made in full on or before the end of the
fifteenth (15th) day following the date on which the Maker is informed by the
proper officer of the Company that the Company's trading window applicable to
officers subject to Section 16 of the Securities Exchange Act of 1934, as
amended, is open (the "Maturity Date"). All money paid toward the satisfaction
of this Promissory Note shall be applied first to the payment of expenses and
then of interest as required hereunder and then to the retirement of principal.

         No waiver of any rights or remedies hereunder shall be effective unless
in writing and signed by the holder; a waiver on one occasion shall not be
construed as a bar to or waiver of any right or remedy on a further occasion.

         The Maker agrees to pay all expenses incurred in collection of this
Promissory Note including reasonable attorneys' fees.

         The Maker shall have the right to prepay this Promissory Note in full
or in part at any prior to the Maturity Date, without penalty.

         The Maker and all endorsers of this Promissory Note hereby waive
presentment, demand, protest, notice of nonpayment and protest and any and all
lack of diligence or delays that may occur in the collection of this Promissory
Note.

         This Promissory Note, including all rights and obligations hereunder,
shall be governed by, construed and interpreted in all respects in accordance
with laws of the State of Delaware.

         If payment in full is not made at the time set out above, the Maker
hereby authorizes and directs the Company to deduct the amounts owed hereunder,
as they become due, from the wages, salary and other benefits and remuneration
owed Robert L. Long, in accordance with applicable laws, rules and regulations
and in such amounts as the Company shall deem appropriate, until payment in full
has been made. The failure or inability of the Company to make any such
deduction shall not relieve the Maker of his obligations hereunder.

         The obligation of payment under this Promissory Note is secured by a
pledge of certain shares of the Company's Common Stock owned by the Maker, under
the terms of a Pledge Agreement dated as of November 12, 2001 and entered into
between the Maker and the Company (the "Pledge Agreement"), a copy of which is
attached hereto as Exhibit A, and is subject to the provisions thereof.
Notwithstanding the foregoing, the holder of this Promissory Note shall have
full recourse against the Maker and shall not be required to proceed against the
collateral securing the Promissory Note in the event of the occurrence of a
default or Event of Default under this Promissory Note, the Pledge Agreement or
the Stock Option Exercise Notice and Irrevocable Subscription Agreement executed
by Maker and attached hereto as Exhibit B.

Maker(s)                                                            Date

/s/ Robert L. Long                                            January 10, 2002

                                       2
<PAGE>
                                    EXHIBIT A

                             STOCK PLEDGE AGREEMENT

         This STOCK PLEDGE AGREEMENT, dated as of November 12, 2001 (this
"Pledge Agreement"), is executed by Robert L. Long, ("Debtor"), in favor of Sun
Microsystems, Inc., a Delaware corporation ("Secured Party").

                                    RECITALS

         A. Debtor and the Secured Party have entered into a Stock Option
            Exercise Notice and Irrevocable Subscription Agreement (the
            "Subscription Agreement"), dated the date hereof and Debtor has
            executed a Promissory Note, dated as of the date hereof (the " First
            Promissory Note"), in favor of the Secured Party in the principal
            amount of $343,634.

         B. Debtor and the Secured Party may enter into a second Promissory Note
            (the "Second Promissory Note") in the amount of taxes Debtor will
            owe in connection with the exercise of the stock options under the
            Subscription Agreement (collectively the First Promissory Note and
            the Second Promissory Note shall be referred to as the "Promissory
            Note").

         C. In order to induce the Secured Party to extend the credit evidenced
            by the Promissory Note, Debtor has agreed to enter into this Pledge
            Agreement and to pledge and grant to Secured Party the security
            interest in the Pledged Collateral described below.

                                PLEDGE AGREEMENT

           NOW, THEREFORE, in consideration of the above recitals and for other
good and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, Debtor hereby agrees with Secured Party as follows:

         1. Definitions and Interpretation. Unless otherwise defined herein, all
other capitalized terms used herein and defined in the Promissory Note shall
have the respective meanings given to those terms in the Promissory Note, and
all terms defined in the California Uniform Commercial Code (the "UCC") shall
have the respective meanings given to those terms in the UCC.

         2. The Pledge. To secure the Obligations as defined in Section 3
hereof, Debtor hereby pledges to Secured Party, and grants to Secured Party a
security interest in, all of Debtor's right, title and interest, whether now
existing or hereafter arising in all instruments, certificated and
uncertificated securities, money and general intangibles of, relating to or
arising from the following property (the "Pledged Collateral"):

             (a) The shares of stock of Sun Microsystems, Inc, a Delaware
corporation ("Issuer") more particularly described on Schedule A attached hereto
(the "Shares") and any additional shares of stock of Issuer hereafter acquired
by Debtor (collectively with the Shares, the "Pledged Shares");

             (b) All dividends (including cash dividends), other distributions
(including stock redemption proceeds), or other property, securities or
instruments in respect of or in exchange for the Pledged Shares, whether by way
of dividends, stock dividends, recapitalizations, mergers, consolidations,
split-ups, combinations or exchanges of shares or otherwise; and

             (c) All proceeds of the foregoing ("Proceeds").

         3. Security for Obligations. The obligations secured by this Pledge
Agreement (the "Obligations") shall mean and include all loans, advances, debts,
liabilities and obligations, howsoever arising, owed by Debtor to the Secured
Party of every kind and description (whether or not evidenced by any note or
instrument and whether or not for the payment of money), now existing or
hereafter arising under or pursuant to the terms of the Promissory Note,
including, all interest, fees, charges, expenses, attorneys' fees and costs and
accountants' fees and costs chargeable to and payable by Debtor hereunder and
thereunder, in each case, whether direct or indirect, absolute or contingent,
due or to become due, and whether or not arising after the commencement of a
proceeding

                                       3
<PAGE>
under Title 11 of the United States Code (11 U.S.C. Section 101 et seq.), as
amended from time to time (including post-petition interest) and whether or not
allowed or allowable as a claim in any such proceeding.

         4. Delivery of Pledged Collateral. All certificates or instruments
representing or evidencing the Pledged Collateral shall be delivered to Secured
Party and shall be in suitable form for transfer by delivery, or shall be
accompanied by duly executed instruments of transfer or assignment in blank, all
in form and substance satisfactory to Secured Party.

         5. Representations and Covenants. Debtor hereby represents and warrants
as follows:

             (a) Issuance of Pledged Shares, Etc. The Pledged Shares are owned
by Debtor free and clear of any and all liens, pledges, encumbrances or charges
(other than the lien created in favor of Secured Party by this Pledge
Agreement), and Debtor has not optioned or otherwise agreed to sell,
hypothecate, pledge, or otherwise encumber or dispose of the Pledged Shares.

             (b) Security Interest. The pledge of the Pledged Collateral creates
a valid security interest in the Pledged Collateral, which security interest is
a perfected and first priority security interest, securing the payment of the
Obligations and the obligations hereunder.

             (c) Restatement of Representations and Warranties. On and as of the
date any property becomes Pledged Collateral, the foregoing representations and
warranties shall apply to such additional Pledged Collateral.

             (d) Liens on Pledged Collateral. Debtor agrees not to create,
incur, assume or suffer to exist any lien or security interest of any kind upon
the Pledged Collateral.

         6. Further Assurances.

             (a) Additional Instruments. Debtor agrees that at any time and from
time to time, at Debtor's expense, Debtor will promptly execute and deliver all
further instruments and documents, including without limitation all additional
Pledged Shares, and take all further action, that may be necessary or desirable,
or that Secured Party may reasonably request, in order to perfect and protect
any security interest granted or purported to be granted hereby or to enable
Secured Party to exercise and enforce its rights and remedies hereunder with
respect to any Pledged Collateral.

             (b) Margin Regulations. In the event that the credit extended
pursuant to this Pledge Agreement and the Promissory Note is now or later
classified as "purpose credit" as such term is defined under Regulation U of the
Board of Governors of the Federal Reserve System ("Regulation U") and Secured
Party is classified as a "lender" within the meaning of Regulation U, Debtor
agrees to cooperate with Secured Party in making any amendments to the
Promissory Note or providing any additional collateral as may be necessary to
comply with such regulations.

         7. Voting Rights; Dividends; Etc.

             (a) Rights Prior to an Event of Default. So long as no Event of
Default shall have occurred and be continuing:

                 (i) Debtor shall be entitled to exercise any and all voting and
other consensual rights pertaining to the Pledged Shares or any part thereof for
any purpose not inconsistent with the terms of this Pledge Agreement.

                 (ii) Debtor shall be entitled to receive and retain free and
clear of the security interest of Secured Party hereunder any and all dividends
and interest paid in respect of the Pledged Shares, provided, however, that any
and all (A) dividends and interest paid or payable other than in cash in respect
of, and instruments and other property received, receivable or otherwise
distributed in respect of, or in exchange for any Pledged Shares, (B) dividends
and other distributions paid or payable in cash in respect of any Pledged Shares
in

                                       4
<PAGE>
connection with a partial or total liquidation or dissolution or in connection
with a reduction of capital, capital surplus or paid-in-surplus, and (C) cash
paid, payable or otherwise distributed in respect of principal of, or in
redemption of, or in exchange for, any Pledged Shares, shall be, and shall be
forthwith delivered to Secured Party to hold as, Pledged Collateral and shall,
if received by Debtor, be received in trust for the benefit of Secured Party, be
segregated from the other property or funds of Debtor and be forthwith delivered
to Secured Party as Pledged Collateral in the same form as so received (with any
necessary endorsement) to be held as part of the Pledged Collateral.

             (b) Rights Following an Event of Default. Upon the occurrence and
during the continuance of an Event of Default:

                 (i) All rights of Debtor to exercise the voting and other
consensual rights which it would otherwise be entitled to exercise pursuant to
Section 7(a)(i) and to receive the dividends and interest payments which it
would otherwise be authorized to receive and retain pursuant to Section 7(a)(ii)
shall cease and all such rights shall thereupon become vested in Secured Party
which shall thereupon have the sole right, but not the obligation, to exercise
such voting and other consensual rights and to receive and hold as Pledged
Collateral such dividends and interest payments.

                 (ii) All dividends and interest payments which are received by
Debtor contrary to the provisions of subparagraph (i) of this Section 7(b) shall
be received in trust for the benefit of Secured Party, shall be segregated from
other funds of Debtor and shall be forthwith delivered to Secured Party as
Pledged Collateral in the same form as so received (with any necessary
endorsement).

         8. Events of Default.

             (a) Event of Default. An "Event of Default" shall mean the
occurrence of one or more of the following described events and the continuance
of such event for a period of ten days following the occurrence thereof:

                 (i) Debtor shall default in the payment of principal or
interest on the Promissory Note when the same is due, or default in the payment
of any expense or other amount payable under the Promissory Note or under this
Pledge Agreement; or

                 (ii) Debtor shall breach the provisions of Section 5(d) of this
Pledge Agreement; or

                 (iii) Debtor shall default in the performance or any covenant,
agreement or obligation (other than a covenant, agreement or obligation referred
to in Section 8(a)(i) or Section 8(a)(ii) of this Pledge Agreement) contained in
the Promissory Note, the Subscription Agreement or this Pledge Agreement and
Debtor shall fail to cure such default within ten (10) days after written notice
thereof from Secured Party.

             (b) Rights Under the UCC. In addition to all other rights granted
hereby, by the Promissory Note and by law, Secured Party shall have, with
respect to the Pledged Collateral, the rights and obligations of a secured party
under the UCC.

             (c) Notice, Etc. In any case where notice of sale is required, ten
(10) days' notice shall be deemed reasonable notice. Secured Party may have
resort to the Pledged Collateral or any portion thereof with no requirement on
the part of Secured Party to proceed first against any other Person or property.

             (d) Other Remedies. Upon the occurrence and during the continuance
of an Event of Default, (i) at the request of Secured Party, Debtor shall
assemble and make available to Secured Party all records relating to the Pledged
Shares at any place or places specified by Secured Party, together with such
other information as Secured Party shall request concerning Debtor's ownership
of the Pledged Shares and relationship to Issuer; and (ii) Secured Party or its
nominee shall have the right, but shall not be obligated, to vote or give
consent with respect to the Pledged Shares or any part thereof.

         9. Secured Party Appointed Attorney-in-Fact.

                                       5
<PAGE>
         Debtor hereby appoints Secured Party as Debtor's attorney-in-fact, with
full authority in the place and stead of Debtor and in the name of Debtor or
otherwise, from time to time in Secured Party's discretion and to the full
extent permitted by law to take any action and to execute any instrument which
Secured Party may deem reasonably necessary or advisable to accomplish the
purposes of this Pledge Agreement in accordance with the terms and provisions
hereof, including without limitation, to receive, endorse and collect all
instruments made payable to Debtor representing any dividend, interest payment
or other distribution in respect of the Pledged Collateral or any part thereof
and to give full discharge for the same.

         Debtor hereby ratifies all reasonable actions that said attorney shall
lawfully do or cause to be done by virtue hereof. This power of attorney is a
power coupled with an interest and shall be irrevocable. The powers conferred on
Secured Party hereunder are solely to protect its interests in the Pledged
Collateral and shall not impose any duty upon Secured Party to exercise any such
powers. Secured Party shall be accountable only for amounts that it actually
receives as a result of the exercise of such powers and in no event shall
Secured Party or any of its officers, directors, employees or agents be
responsible to Debtor for any act or failure to act, except for gross negligence
or willful misconduct.

         10. Miscellaneous.

             (a) Notices. Except as otherwise provided herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Secured Party or Debtor under this Pledge Agreement shall be in writing and
telecopied, mailed or delivered to each party at its telecopier number or
address set forth on the signature page of this Pledge Agreement (or to such
other telecopier number or address for any party as indicated in any notice
given by that party to the other party). All such notices and communications
shall be effective (a) when sent by Federal Express or other overnight service
of recognized standing, on the business day following the deposit with such
service; (b) when mailed by registered or certified mail, first class postage
prepaid and addressed as aforesaid through the United States Postal Service,
upon receipt; (c) when delivered by hand, upon delivery; and (d) when
telecopied, upon confirmation of receipt.

             (b) Nonwaiver. No failure or delay on Secured Party's part in
exercising any right hereunder shall operate as a waiver thereof or of any other
right nor shall any single or partial exercise of any such right preclude any
other further exercise thereof or of any other right.

             (c) Amendments and Waivers. This Pledge Agreement may not be
amended or modified, nor may any of its terms be waived, except by written
instruments signed by Debtor and Secured Party. Each waiver or consent under any
provision hereof shall be effective only in the specific instances for the
purpose for which given.

             (d) Assignments. This Pledge Agreement shall be binding upon and
inure to the benefit of Secured Party and Debtor and their respective successors
and assigns.

             (e) Cumulative Rights, etc. The rights, powers and remedies of
Secured Party under this Pledge Agreement shall be in addition to all rights,
powers and remedies given to Secured Party by virtue of any applicable law, rule
or regulation of any governmental authority, the Promissory Note or any other
agreement, all of which rights, powers, and remedies shall be cumulative and may
be exercised successively or concurrently without impairing Secured Party's
rights hereunder. Debtor waives any right to require Secured Party to proceed
against any Person or to exhaust any Pledged Collateral or to pursue any remedy
in Secured Party's power.

             (f) Partial Invalidity. If any time any provision of this Pledge
Agreement is or becomes illegal, invalid or unenforceable in any respect under
the law or any jurisdiction, neither the legality, validity or enforceability of
the remaining provisions of this Pledge Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

             (g) Expenses. Each of Debtor and Secured Party shall bear its own
costs in connection with the preparation, execution and delivery of, and the
exercise of its duties under, this Pledge Agreement.

                                       6
<PAGE>
             (h) Governing Law. This Pledge Agreement shall be governed by and
construed in accordance with the laws of the State of Delaware without reference
to conflicts of law rules (except to the extent governed by the UCC).

             (i) Jury Trial. EACH OF DEBTOR AND SECURED PARTY, TO THE FULLEST
EXTENT PERMITTED BY APPLICABLE LAW, HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL
BY JURY AS TO ANY ISSUE RELATING HERETO IN ANY ACTION, PROCEEDING, OR
COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS PLEDGE AGREEMENT.

                  [Remainder of page intentionally left blank.]

                                       7
<PAGE>
         IN WITNESS WHEREOF, Debtor has caused this Pledge Agreement to be
executed as of the day and year first above written.

                                            ROBERT L. LONG

                                            /s/ Robert L. Long

                                            ADDRESS:
                                            ____________________________________

                                            ____________________________________

                                            Telephone:__________________________

                                            Facsimile:__________________________

         ACKNOWLEDGED:

         SUN MICROSYSTEMS, INC.

         By:_______________________________

         Name:_____________________________

         Title:____________________________

         ADDRESS:
         __________________________________

         __________________________________

         Telephone:________________________

         Facsimile:________________________

                                       8
<PAGE>
                                   SCHEDULE A

                               TO PLEDGE AGREEMENT

                                     SHARES

<TABLE>
<CAPTION>
        Issuer           Certificate Number   Certificate Date    Registered Holder    Number of Shares
        ------           ------------------   ----------------    -----------------    ----------------
<S>                      <C>                  <C>                 <C>                  <C>
Sun Microsystems, Inc.       Book Entry                             Robert L. Long          93,364
</TABLE>

                                      9

<PAGE>
                           STOCK POWER AND ASSIGNMENT
                            SEPARATE FROM CERTIFICATE

         FOR VALUE RECEIVED and pursuant to that certain Stock Pledge Agreement
dated as of ______________, the undersigned hereby sells, assigns and transfers
unto _______________________________, ______________________ (______) shares of
Common Stock of Sun Microsystems, Inc., a Delaware corporation, standing in the
undersigned's name on the books of said corporation represented by certificate
number _______ delivered herewith, and does hereby irrevocably constitute and
appoint ________________________ as attorney-in-fact, with full power of
substitution, to transfer said stock on the books of said corporation.

Dated:

                                            ____________________________________
                                            (Signature)

                                            ____________________________________
                                            (Please Print Name)

                                            ____________________________________
                                            (Spouse's Signature, if any)

                                            ____________________________________
                                            (Please Print Name)

         This Assignment Separate From Certificate was executed in conjunction
with the terms of a Stock Pledge Agreement between the above assignor and Sun
Microsystems, Inc., dated as of [DATE] __, 200_.

INSTRUCTION: PLEASE DO NOT FILL IN ANY BLANKS OTHER THAN THE SIGNATURE AND NAME
LINES.

                                       10
<PAGE>
                                    EXHIBIT B

                             SUN MICROSYSTEMS, INC.
                          STOCK OPTION EXERCISE NOTICE
                     AND IRREVOCABLE SUBSCRIPTION AGREEMENT

Attn: Stock Administrator

Ladies and Gentlemen:

         I, Robert L. Long, irrevocably elect to exercise my option to purchase
an aggregate of 95,000 shares of common stock at an exercise price of $3.6172
per share (the "Shares") of Sun Microsystems, Inc. (the "Company") under and
pursuant to the Nonstatutory Stock Option Agreement(s) attached as Exhibit A
hereto and incorporated herein by this reference (the "Option Agreements")
granted to me by the Company pursuant to the Company's 1988 Directors' Stock
Option Plan.

         I agree to make full payment of the option exercise price for the
Shares within the fifteen day period following the date on which the Company's
General Counsel notifies me, together with the other directors and/or executive
officers of the Company subject to Section 16 of the Securities Exchange Act of
1934, that the trading window governed by the Company's insider trading policy
is open. I further agree that payment of the exercise price shall be (1) in
cash, (2) by tender of stock of the Company having a fair market value not less
than the option exercise price and held by me for at least six (6) months prior
to the their tender, or (3) by such other consideration as may have been
approved by the Board of Directors of the Company at the time these options were
granted as specified in the applicable Option Agreement. In addition, I will
make adequate provision for federal and state income tax withholding obligations
of the Company, if any, which arise by virtue of my exercise, in whole or in
part, of these options.

         I represent and agree that the Shares are being acquired by me in
accordance with and subject to the terms, provisions and conditions of the
Option Agreements, to all of which I hereby expressly assent. In addition, I
acknowledge that my obligations hereunder are secured pursuant to the terms of
that certain Security Agreement executed simultaneously herewith. These
agreements shall bind and inure to the benefit of my heirs, legal
representatives, successors and assigns.

         I UNDERSTAND THAT THIS EXERCISE NOTICE AND IRREVOCABLE SUBSCRIPTION
AGREEMENT MAY NOT BE REVOKED, ALTERED, AMENDED OR TERMINATED. I FURTHER
ACKNOWLEDGE THAT THE MARKET VALUE OF THE SHARES RECEIVED ON EXERCISE OF THE
OPTIONS MAY DECREASE IN VALUE, AND REGARDLESS OF ANY SUCH DECREASE I WILL BE
LIABLE

                                       11
<PAGE>
UNDER ALL CIRCUMSTANCES FOR PAYMENT OF THE FULL EXERCISE PRICE, WITHOUT
EXCEPTION. I HAVE ALSO BEEN ADVISED TO CONSULT MY TAX ADVISOR CONCERNING THE
EXERCISE OF THE SUBJECT OPTIONS AND THE ADVISABILITY OF ENTERING INTO ANY TAX OR
OTHER ELECTIONS IN CONNECTION THEREWITH.

My address of record is:

_________________________________

_________________________________

_________________________________

and my Social Security Number is:

_________________________________

                                             Very truly yours,

                                             /s/ Robert L. Long

           _________________________________

         The undersigned, being the spouse of the optionee exercising the
options set forth above, does hereby acknowledge that the undersigned has read
and is familiar with the provisions of the above Stock Option Exercise Notice
and Irrevocable Subscription Agreement and the Option Agreements, and the
undersigned hereby agrees to such Agreements and joins in them to the extent, if
any, that the agreement and joinder of the undersigned may be necessary.

Date:_____________________

Receipt of the above is hereby acknowledged.

By:________________________________

Dated:_____________________________

                                       12

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