<PAGE>   1
 
                                  SCHEDULE 14A 
                                 (RULE 14a-101)

                    INFORMATION REQUIRED IN PROXY STATEMENT
                                        
                            SCHEDULE 14A INFORMATION
          PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                     EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

Filed by the Registrant [X]
 
Filed by a Party other than the Registrant [ ]
 
Check the appropriate box:
 
[ ]  Preliminary Proxy Statement    [ ]  Confidential, for Use of the Commission
                                         Only (as permitted by Rule 14a-6(e)(2))
[X]  Definitive Proxy Statement
[ ]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12
                                        
                         
                               UNISYS CORPORATION
--------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)
 
--------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement if other than the Registrant)
 
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[X]  No fee required.
 
[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
 
     (1)  Title of each class of securities to which transaction applies:
 
        ------------------------------------------------------------------------
 
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     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined):
 
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[ ]  Fee paid previously with preliminary materials.
 
[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by registration statement number,
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     (1)  Amount previously paid:
 
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<PAGE>   2
 
                                                       Unisys Corporation
                                                       Unisys Way
                                                       Blue Bell, PA 19424-0001
 
[UNISYS LOGO]
 
March 15, 2001
 
Dear Fellow Stockholder:
 
     It is my pleasure to invite you to the Unisys 2001 Annual Meeting of
Stockholders. This year's meeting will be held on Thursday, April 26, 2001, at
The Inn at Penn, which is located at 3600 Sansom Street in Philadelphia,
Pennsylvania. The meeting will begin at 9:30 a.m.
 
     Unisys faced a challenging year in 2000. It was a year of engineering a
major transition in our company to an e-business model, and our financial
results reflected this. Nonetheless, we moved decisively during the year to
reshape our portfolio, our skills set, and our cost structure in light of market
changes. I believe we go forward with a strong foundation for improved results
in 2001 and beyond.
 
     Whether you plan to attend the annual meeting or not, I urge you to take a
moment to vote on the items in this year's proxy statement. Most stockholders
have a choice of voting their shares over the Internet, by telephone, or by
completing, signing, and returning a proxy card. Voting by any of these means
takes only a few minutes, and it will ensure that your shares are represented at
the meeting. If you vote over the Internet, you will also be given the
opportunity to access future proxy statements and annual reports over the
Internet instead of receiving paper copies in the mail. Electronic access saves
the company the cost of producing and mailing these documents. I encourage you
to take advantage of it.
 
     I look forward to seeing you at the annual meeting and to reporting on the
actions we took in 2000 and our goals for 2001.
 
                                          Sincerely,
 
                                          /s/ Larry A. Weinbach
                                          Lawrence A. Weinbach
                                          Chairman, President and
                                          Chief Executive Officer

<PAGE>   3
 
                                 [UNISYS LOGO]
 

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
 
                                 APRIL 26, 2001
 
     Unisys Corporation will hold its 2001 Annual Meeting of Stockholders at The
Inn at Penn, Sansom Common, 3600 Sansom Street, Philadelphia, Pennsylvania, on
Thursday, April 26, 2001, at 9:30 a.m. to:
 
          1. elect three directors;
 
          2. ratify the selection of independent auditors for 2001; and
 
          3. transact any other business properly brought before the meeting.
 
     Only holders of Unisys Common Stock of record at the close of business on
February 28, 2001 will be entitled to vote at the Annual Meeting.
 
                                          By Order of the Board of Directors,
 
                                          /s/ Nancy Straus Sundheim
                                          Nancy Straus Sundheim
                                          Senior Vice President, General Counsel
                                          and Secretary
 
Blue Bell, Pennsylvania
M
arch 15, 2001
 
                                   IMPORTANT
 
YOUR VOTE IS IMPORTANT. MOST STOCKHOLDERS WILL HAVE A CHOICE OF VOTING OVER THE
INTERNET, BY TELEPHONE, OR BY USING A TRADITIONAL PROXY CARD. PLEASE CHECK THE
INFORMATION YOU HAVE RECEIVED TO SEE WHICH OPTIONS ARE AVAILABLE TO YOU.

<PAGE>   4
 
                               TABLE OF CONTENTS
 

<TABLE>
<S>                                                           <C>
PROXY STATEMENT
  Required Vote.............................................    1
  Voting Procedures and Revocability of Proxies.............    1
ELECTION OF DIRECTORS.......................................    2
  Information Regarding Nominees and Directors..............    2
  Board Meetings............................................    5
  Committees................................................    5
  Audit Committee Report....................................    6
  Corporate Governance Guidelines...........................    7
  Stock Ownership Guidelines................................    8
RATIFICATION OF SELECTION OF INDEPENDENT AUDITORS...........    8
SECURITY OWNERSHIP BY CERTAIN BENEFICIAL OWNERS AND
  MANAGEMENT................................................    8
EXECUTIVE COMPENSATION......................................   10
  Summary Compensation Table................................   10
  Option Grants in Last Fiscal Year.........................   11
  Option Exercises and Fiscal Year-End Values...............   11
  Pension Plans.............................................   12
  Employment Agreements.....................................   13
  Change in Control Employment Agreements...................   13
  Transactions with Management..............................   14
  Compensation of Directors.................................   14
REPORT OF THE CORPORATE GOVERNANCE AND COMPENSATION
  COMMITTEE.................................................   15
  Compensation Program and Policies.........................   15
  Base Salary...............................................   15
  Short-Term Incentive Payments.............................   15
  Long-Term Incentive Awards................................   16
  Compensation of the Chief Executive Officer...............   16
  Deductibility of Executive Compensation...................   16
STOCK PERFORMANCE GRAPH.....................................   17
GENERAL MATTERS.............................................   18
  Section 16(a) Beneficial Ownership Reporting Compliance...   18
  Policy on Confidential Voting.............................   18
  Stockholder Proposals and Nominations.....................   18
  Electronic Access to Proxy Materials and Annual Report....   18
  Other Matters.............................................   19
APPENDIX A
Audit Committee Charter.....................................  A-1
</TABLE>


<PAGE>   5
 
                               UNISYS CORPORATION
 
                                PROXY STATEMENT
 
                         ANNUAL MEETING OF STOCKHOLDERS
 
                                 APRIL 26, 2001
 
     The Board of Directors of Unisys Corporation solicits your proxy for use at
the 2001 Annual Meeting of Stockholders to be held on April 26, 2001 and at any
adjournments. At the Annual Meeting, stockholders will be asked to elect
directors and to ratify the selection of independent auditors.
 
     The record date for the Annual Meeting is February 28, 2001. Only holders
of record of Unisys Common Stock as of the close of business on the record date
are entitled to vote at the meeting. On the record date, 316,563,888 shares of
Common Stock were outstanding. The presence, in person or by proxy, of a
majority of those shares will constitute a quorum at the meeting.
 
     This Proxy Statement, the proxy/voting instruction card, and the annual
report of Unisys, including the financial statements for 2000, are being mailed
and made available on the Internet on or about March 15, 2001.
 
REQUIRED VOTE
 
     Each share of Unisys Common Stock outstanding on the record date is
entitled to one vote on each matter to be voted upon. Directors will be elected
by a plurality of the votes cast (i.e., the nominees receiving the greatest
number of votes will be elected). Abstentions and broker non-votes are not
counted for purposes of the election of directors. Ratification of the selection
of independent auditors will require the affirmative vote of a majority of
shares present, in person or by proxy, and entitled to vote. Abstentions will be
included in the vote totals for this matter, and therefore will have the same
effect as a negative vote; broker non-votes will not be included in the vote
totals and therefore will have no effect on the vote.
 
VOTING PROCEDURES AND REVOCABILITY OF PROXIES
 
     Your vote is important. Shares may be voted at the Annual Meeting only if
you are present in person or represented by proxy. Most stockholders have a
choice of voting (a) by completing a proxy/voting instruction card and mailing
it in the postage-paid envelope provided, (b) over the Internet, or (c) by
telephone using a toll-free telephone number. Check the materials you have
received to see which options are available to you and to obtain the applicable
web site or telephone number. If you elected to receive proxy materials over the
Internet, you should have already received e-mail instructions on how to vote
electronically. Please be aware that if you vote over the Internet, you may
incur costs associated with your electronic access, such as usage charges from
Internet access providers and telephone companies, for which you will be
responsible.
 
     The telephone and Internet voting procedures are designed to authenticate
stockholders' identities by use of a control number, to allow stockholders to
give their voting instructions, and to confirm that stockholders' instructions
have been recorded properly. The Company has been advised by counsel that the
telephone and Internet voting procedures are consistent with the requirements of
applicable law.

<PAGE>   6
 
     You may revoke your proxy at any time before it is exercised by writing to
the Secretary of Unisys, by timely delivery of a properly executed later-dated
proxy (including an Internet or telephone vote), or by voting in person at the
meeting.
 
     The method by which you vote will in no way limit your right to vote at the
meeting if you later decide to attend in person. If your shares are held in the
name of a bank, broker, or other holder of record, you must obtain a proxy,
executed in your favor, from the holder of record to be able to vote at the
meeting.
 
     If you properly complete and return your proxy, and do not revoke it, the
proxy holders will vote your shares in accordance with your instructions. If
your properly completed proxy gives no instructions, the proxy holders will vote
your shares FOR the election of directors, FOR the selection of independent
auditors, and in their discretion on any other matters that properly come before
the Annual Meeting.
 
     If you are a participant in the Unisys Savings Plan, the proxy/voting
instruction card will serve as voting instructions to the plan trustee for any
whole shares of Unisys Common Stock credited to your account as of February 28,
2001. The trustee will vote those shares in accordance with your instructions if
it receives your completed proxy by April 20, 2001. If the proxy is not timely
received, or if you give no instructions on a matter to be voted upon, the
trustee will vote the shares credited to your account in the same proportion as
it votes those shares for which it received proper instructions from other
participants.
 
                             ELECTION OF DIRECTORS
 
     The Board of Directors currently consists of ten members, divided into
three classes. One class of directors is elected each year to hold office for a
three-year term. The three directors whose terms expire in 2001, Henry C.
Duques, Theodore E. Martin, and Lawrence A. Weinbach, have been nominated for
reelection. The remaining seven directors will continue to serve as set forth
below. Each of the nominees has agreed to serve as a director if elected, and
Unisys believes that each nominee will be available to serve. However, the proxy
holders have discretionary authority to cast votes for the election of a
substitute should any nominee not be available to serve as a director.
 
INFORMATION REGARDING NOMINEES AND DIRECTORS
 
     The names and ages of the nominees and directors, their principal
occupations and employment during the past five years, and other data regarding
them are as follows.
 
                                        2

<PAGE>   7
 
                         NOMINEES FOR ELECTION TO THE BOARD OF DIRECTORS
 
[DUQUES PHOTO]
                  HENRY C. DUQUES
                  Mr. Duques, 57, is a Director and Chairman and Chief Executive
                  Officer of First Data Corporation, an electronic payments and
                  information management company. He is a Director of CheckFree
                  Corporation and theglobe.com, inc. He has served as a Director
                  of Unisys since 1998 and is a member of the Corporate
                  Governance and Compensation Committee.
 
[MARTIN PHOTO]
                  THEODORE E. MARTIN
                  Mr. Martin, 61, is a retired President and Chief Executive
                  Officer of Barnes Group Inc., a manufacturer and distributor
                  of automotive and aircraft components and maintenance
                  products. He has also held the position of Executive Vice
                  President-Operations of that company. He is a Director of
                  Ingersoll-Rand Company and Applera Corporation. He has served
                  as a Director of Unisys since 1995 and is a member of the
                  Finance Committee.
 
[WEINBACH PHOTO]
                  LAWRENCE A. WEINBACH
                  Mr. Weinbach, 61, is Chairman of the Board, President and
                  Chief Executive Officer of Unisys. He previously served in the
                  position of Managing Partner-Chief Executive of Andersen
                  Worldwide, a global professional services organization. He is
                  a Director of Avon Products, Inc. He has served as a Director
                  of Unisys since 1997.
 
                      MEMBERS OF THE BOARD OF DIRECTORS CONTINUING IN OFFICE
                                      TERM EXPIRING IN 2002
 
[BOLDUC PHOTO]
                  J. P. BOLDUC
                  Mr. Bolduc, 61, is Chairman and Chief Executive Officer of JPB
                  Enterprises, Inc., a merchant banking, venture capital, and
                  real estate investment holding company with interests in the
                  food, real estate, packaging, instrument calibration, and
                  manufacturing industries. He previously served in the
                  positions of President and Chief Executive Officer, Vice
                  Chairman, and Chief Operating Officer of W. R. Grace & Co., a
                  specialty chemicals and health care company. He is a Director
                  of Proudfoot PLC. He has served as a Director of Unisys since
                  1992 and is a member of the Finance Committee and the
                  Nominating Committee.
 
                                        3

<PAGE>   8
 
[DUDERSTADT PHOTO]
                  JAMES J. DUDERSTADT
                  Dr. Duderstadt, 58, is President Emeritus and University
                  Professor of Science and Engineering at the University of
                  Michigan. He is a Director of CMS Energy Corporation. He has
                  served as a Director of Unisys since 1990 and is a member of
                  the Audit Committee.
 
[MACKE PHOTO]
                  KENNETH A. MACKE
                  Mr. Macke, 62, is General Partner of Macke Partners, a venture
                  capital firm. He previously served as Chairman and Chief
                  Executive Officer of Dayton Hudson Corporation, a general
                  merchandise retailer. He has served as a Director of Unisys
                  since 1989 and is a member of the Corporate Governance and
                  Compensation Committee and the Nominating Committee.
 
                            MEMBERS OF THE BOARD CONTINUING IN OFFICE
                                      TERM EXPIRING IN 2003
 
[FOSLER PHOTO]
                  GAIL D. FOSLER
                  Ms. Fosler, 53, is Senior Vice President and Chief Economist
                  of The Conference Board, a business-sponsored, nonprofit
                  research organization. She is a Director of H. B. Fuller
                  Company and DBS Holdings (Singapore) and a Trustee of the John
                  Hancock Mutual Funds. She has served as a Director of Unisys
                  since 1993 and is a member of the Finance Committee.
 
[GOODES PHOTO]
                  MELVIN R. GOODES
                  Mr. Goodes, 65, is a retired Chairman and Chief Executive
                  Officer of Warner-Lambert Company, a diversified worldwide
                  health care, pharmaceutical, and consumer products company. He
                  has served as a Director of Unisys since 1987 and is a member
                  of the Corporate Governance and Compensation Committee.
 
                                        4

<PAGE>   9
 
[GUPTA PHOTO]
                  RAJIV L. GUPTA
                  Mr. Gupta, 55, is a Director and Chairman and Chief Executive
                  Officer of Rohm and Haas Company, a specialty chemical
                  company. He has also held the positions of Vice Chairman and
                  Vice President of that company. He is a Director of
                  Technitrol, Inc. He has served as a Director of Unisys since
                  February, 2000 and is a member of the Audit Committee.
 
[HUSTON PHOTO]
                  EDWIN A. HUSTON
                  Mr. Huston, 62, is a retired Vice Chairman of Ryder System,
                  Inc., an international logistics and transportation solutions
                  company. He has also served as Senior Executive Vice President
                  Finance and Chief Financial Officer of that company. He has
                  served as a Director of Unisys since 1993 and is a member of
                  the Audit Committee.
 
BOARD MEETINGS
 
     The Board of Directors held six meetings in 2000. During 2000, all
directors attended at least 75 percent of the meetings of the Board of Directors
and standing Committees on which they served.
 
COMMITTEES
 
     The Board of Directors has a standing Audit Committee, Corporate Governance
and Compensation Committee, Finance Committee, and Nominating Committee.
 
     The Audit Committee assists the Board in its oversight of the integrity of
the Company's financial statements and its financial reporting and disclosure
practices, the soundness of its systems of internal financial and accounting
controls, the independence and performance of its internal and independent
auditors, and the soundness of its ethical and environmental compliance
programs. The Audit Committee held five meetings in 2000. Its members are Dr.
Duderstadt, Mr. Gupta, and Mr. Huston.
 
     The Corporate Governance and Compensation Committee oversees the Company's
corporate governance, the Company's executive management structure, the
compensation-related policies and programs involving the Company's executive
management, and the level of compensation and benefits of officers and key
employees. It also oversees the Company's diversity programs. The Corporate
Governance and Compensation Committee held five meetings in 2000. Its members
are Mr. Duques, Mr. Goodes, and Mr. Macke.
 
     The Finance Committee reviews the Company's financial affairs, including
its capital structure, financial arrangements, capital spending, and acquisition
and disposition plans. It also oversees the management and investment of funds
in the pension, savings, and welfare plans sponsored by the Company. The Finance
Committee held five meetings in 2000. Its members are Mr. Bolduc, Ms. Fosler,
and Mr. Martin.
 
                                        5

<PAGE>   10
 
     The Nominating Committee identifies and reviews candidates and recommends
to the Board of Directors nominees for membership on the Board of Directors. In
fulfilling this responsibility, the Nominating Committee will consider
recommendations received from stockholders and other qualified sources.
Stockholder recommendations must be in writing and addressed to the Chairman of
the Nominating Committee, c/o Corporate Secretary, Unisys Corporation, Unisys
Way, Blue Bell, Pennsylvania 19424. The Nominating Committee held two meetings
in 2000. Its members are Mr. Bolduc, Mr. Huston, and Mr. Macke.
 
AUDIT COMMITTEE REPORT
 
     The Audit Committee's specific functions and responsibilities are set forth
in the Audit Committee Charter, which is attached as Appendix A to this Proxy
Statement. The Committee consists entirely of directors who meet the
independence and experience requirements of the New York Stock Exchange.
 
     In performing its oversight responsibilities, the Committee reviewed and
discussed the audited financial statements with management. The Committee also
discussed with Ernst & Young LLP, the Company's independent auditors, the
matters required to be discussed by Statement on Auditing Standards No. 61
(Communication with Audit Committees). In addition, the Committee has discussed
with Ernst & Young LLP their independence and has received from them the written
disclosures required by the Independence Standards Board. The Committee has also
considered the compatibility of the services discussed in All Other Fees below
with the auditors' independence.
 
     Based on these reviews and discussions, the Committee recommended to the
Board of Directors that the audited financial statements be included in the
Annual Report on Form 10-K for the year ended December 31, 2000 for filing with
the SEC.
 
     Ernst & Young LLP have billed the Company the following fees for
professional services rendered in respect of the year ended December 31, 2000:
 
     Audit Fees.  $1.8 million for the annual audit of the Company's financial
statements.
 
     Financial Information Systems Design and Implementation Fees.  None.
 
     All Other Fees.  $5.5 million, consisting of audit-related services of $1.8
million and non-audit services of $3.7 million. Audit-related services generally
include fees for pension and statutory audits ($1.1 million), accounting advice
regarding specific transactions, and various attestation reports. Non-audit
services generally include fees for tax advisory and compliance services ($2.3
million) and various other advisory services.
 
                                                                 Audit Committee
 
                                                             James J. Duderstadt
                                                                  Rajiv L. Gupta
                                                                 Edwin A. Huston
 
                                        6

<PAGE>   11
 
CORPORATE GOVERNANCE GUIDELINES
 
     The Board of Directors has adopted Guidelines on Significant Corporate
Governance Issues. Among other matters, these guidelines cover the following:
 
           1. A majority of the Board of Directors should be independent
     directors. Interlocking directorships should be avoided, and directors
     should not, except in rare circumstances approved by the Board, draw any
     consulting, legal, or other fees from the Company. The independence of
     outside directors is reviewed annually by the Corporate Governance and
     Compensation Committee.
 
           2. Membership on the Audit, Corporate Governance and Compensation,
     and Nominating Committees is limited to outside directors.
 
           3. Directors may not stand for election after age 70 or continue to
     serve beyond the annual stockholders' meeting following the attainment of
     age 70.
 
           4. Directors should offer their resignations upon a change in
     position, including retirement, from the position they held when they were
     elected to the Board. In addition, if the Company's chief executive officer
     resigns from that position, he is expected to offer his resignation from
     the Board at the same time.
 
           5. The Nominating Committee is responsible for determining the
     appropriate skills and characteristics required of Board members and will
     consider issues of diversity, age, and skills in its assessment of the
     needs of the Board. The Corporate Governance and Compensation Committee
     maintains an orientation program for new directors.
 
           6. The Corporate Governance and Compensation Committee is responsible
     for giving annually an assessment of the Board's performance and of its
     contribution as a whole.
 
           7. The outside directors have the opportunity to meet in executive
     session, without the chief executive officer and other members of
     management, at any time. Either the outside director serving as the
     chairman of the Corporate Governance and Compensation Committee or the
     outside director serving as the chairman of the Finance Committee shall
     assume the responsibility of chairing such meetings.
 
           8. The outside directors meet annually in executive session to review
     the performance of the chief executive officer. The evaluation is led by
     the chairman of the Corporate Governance and Compensation Committee and is
     based on objective criteria, including performance of the business,
     accomplishment of long-term strategic objectives, and development of
     management. The evaluation is used by the Corporate Governance and
     Compensation Committee in its consideration of the compensation of the
     chief executive officer.
 
           9. The chief executive officer is expected to provide an annual
     report on succession planning to the Corporate Governance and Compensation
     Committee.
 
          10. Board members have complete access to Unisys management. Members
     of senior management who are not Board members regularly attend Board
     meetings, and the Board encourages senior management, from time to time, to
     bring into Board meetings other managers who can provide additional
     insights into the matters under discussion.
 
                                        7

<PAGE>   12
 
STOCK OWNERSHIP GUIDELINES
 
     In 1998, the Board established stock ownership guidelines for both
directors and executive officers in order to more closely link their interests
with those of stockholders. Under the guidelines, directors are expected to own,
within a five-year period, Unisys stock or stock units having a value equal to
four times their annual retainer. Executive officers are expected to own stock
or stock units having a value equal to a multiple of base salary as follows:
chief executive officer -- four times; executive and senior vice
presidents -- two times; vice presidents -- one times. They have either three or
five years to achieve the minimum levels, depending on the date they became an
executive officer. Stock options, including vested stock options, do not count
toward fulfillment of the ownership guidelines.
 
               RATIFICATION OF SELECTION OF INDEPENDENT AUDITORS
 
     The Board of Directors, upon the recommendation of the Audit Committee, has
selected the firm of Ernst & Young LLP as independent auditors to audit the
Company's books and accounts for the year ending December 31, 2001 and
recommends ratification of this selection by the stockholders. Ernst & Young LLP
has served as independent auditors for Unisys since 1986. Its representatives
will be present at the Annual Meeting and will have the opportunity to make a
statement if they desire to do so and to respond to appropriate questions asked
by stockholders.
 
     The Board of Directors considers Ernst & Young LLP to be well qualified to
serve as the independent auditors for Unisys. If, however, stockholders do not
ratify the selection of Ernst & Young LLP, the Board will reconsider the
appointment.
 
     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE PROPOSAL TO RATIFY THE
SELECTION OF ERNST & YOUNG LLP AS INDEPENDENT AUDITORS FOR 2001. PROXIES
SOLICITED BY THE BOARD OF DIRECTORS WILL BE SO VOTED UNLESS STOCKHOLDERS
OTHERWISE SPECIFY IN THEIR PROXIES.
 

         SECURITY OWNERSHIP BY CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
     Shown below is information with respect to persons or groups that
beneficially own more than five percent of Unisys Common Stock. This information
is derived from Schedules 13G filed by such persons or groups in February 2001.
 

<TABLE>
<CAPTION>
N
AME AND ADDRESS OF                                           NUMBER OF SHARES    PERCENT
BENEFICIAL OWNER                                              OF COMMON STOCK     OF CLASS
-------------------                                           ----------------    --------
<S>                                                           <C>                 <C>
Brandes Investment Partners, L.P. ..........................     16,467,526(1)      5.2
Brandes Investment Partners, Inc.
Brandes Holdings, L.P.
Charles H. Brandes
Glenn R. Carlson
Jeffrey A. Busby
11988 El Camino Real, Suite 500
San Diego, CA 92130
</TABLE>

 
---------------
(1) Shared dispositive power has been reported for 16,467,526 shares. Shared
    voting power has been reported for 13,361,344 shares.
 
                                        8

<PAGE>   13
 
     Shown below are the number of shares of Unisys Common Stock (or stock
units) beneficially owned as of March 1, 2001, by all directors and nominees,
each of the executive officers named on page 10, and all directors and officers
of Unisys as a group. No individual or group named below beneficially owns more
than one percent of the outstanding shares of Unisys Common Stock.
 

<TABLE>
<CAPTION>
                                                                        ADDITIONAL SHARES OF
                                               NUMBER OF SHARES         COMMON STOCK DEEMED
             BENEFICIAL OWNER                OF COMMON STOCK(1)(2)    BENEFICIALLY OWNED(1)(3)
             ----------------                ---------------------    ------------------------
<S>                                          <C>                      <C>
Jack A. Blaine.............................           9,180                    123,250
J. P. Bolduc...............................          29,280                      2,500
James J. Duderstadt........................          12,333                      2,500
Henry C. Duques............................          11,343                      2,500
Gail D. Fosler.............................          26,003                      2,500
George R. Gazerwitz........................          59,044                    243,750
Melvin R. Goodes...........................          15,513                      2,500
Rajiv L. Gupta.............................           2,726                      2,500
Edwin A. Huston............................          13,555                      2,500
Kenneth A. Macke...........................          42,434                      2,500
Theodore E. Martin.........................          42,499                      2,500
Joseph W. McGrath..........................          49,812                     58,750
Janet B. Wallace...........................           1,737                     18,750
Lawrence A. Weinbach.......................         254,794                  1,219,000
All directors and officers as a group......         765,608                  2,627,825
</TABLE>

 
---------------
 
(1) Includes shares reported by directors and officers as held directly or in
    the names of spouses, children, or trusts as to which beneficial ownership
    may have been disclaimed.
 
(2) Includes:
 
     (a) Shares held under the Unisys Savings Plan, a qualified plan under
         Sections 401(a) and 401(k) of the Internal Revenue Code, as follows:
         Mr. Blaine, 970; Mr. Gazerwitz, 1,907; Mr. McGrath, 147; Ms. Wallace,
         98; Mr. Weinbach, 151; officers as a group, 14,290. With respect to
         such shares, plan participants have authority to direct voting.
 
     (b) Stock units deferred under the Unisys Corporation Deferred Compensation
         Plan as follows: Mr. Blaine, 5,700; Mr. Gazerwitz, 13,000; Mr. McGrath,
         17,493; officers as a group, 114,602. Deferred stock units are payable
         in shares of Unisys Common Stock upon termination of employment or any
         date at least five years (two years for stock units deferred after
         January 1, 2001) after the deferral. They may not be voted.
 
     (c) Restricted share units as follows: Mr. McGrath, 19,333; officers as a
         group, 24,333. Restricted share units are payable in shares of Unisys
         Common Stock upon vesting. They may not be voted.
 
     (d) Stock Units, as described on page 14, for directors as follows: Mr.
         Bolduc, 11,280; Dr. Duderstadt, 11,283; Mr. Duques, 6,343; Ms. Fosler,
         9,853; Mr. Goodes, 15,313; Mr. Gupta, 1,726; Mr. Huston, 12,555; Mr.
         Macke, 41,234; and Mr. Martin, 22,499.
 
(3) Shares shown are shares subject to options exercisable within 60 days
    following March 1, 2001.
 
                                        9

<PAGE>   14
 

                             EXECUTIVE COMPENSATION
 
SUMMARY COMPENSATION TABLE
 
     The following table sets forth information concerning the annual and
long-term compensation paid to the chief executive officer and the other four
most highly compensated executive officers of Unisys in 2000 (the "Named
Officers") for services rendered in all capacities to Unisys for 2000, 1999, and
1998.
 

<TABLE>
<CAPTION>
                                                                                     LONG-TERM COMPENSATION
                                                                          ---------------------------------------------
                          ANNUAL COMPENSATION                                     AWARDS                  PAYOUTS
-----------------------------------------------------------------------   -----------------------   -------------------
                                                                OTHER     RESTRICTED   SECURITIES
                                                               ANNUAL       STOCK      UNDERLYING    LTIP     ALL OTHER
                                                               COMPEN-     AWARD(S)     OPTIONS/    PAYOUTS    COMPEN-
           NAME AND                   SALARY(1)   BONUS(1)    SATION(2)      (3)        SARS(4)       (4)     SATION(5)
      PRINCIPAL POSITION        YEAR     ($)         ($)         ($)         ($)          (#)         ($)        ($)
      ------------------        ----  ---------   ---------   ---------   ----------   ----------   -------   ---------
<S>                             <C>   <C>         <C>         <C>         <C>          <C>          <C>       <C>
Lawrence A. Weinbach..........  2000  1,320,000     396,000     566,920          --      400,000      --       332,213
  Chairman, President and       1999  1,300,000   1,320,000   2,012,936          --      363,000      --       330,413
  Chief Executive Officer       1998  1,200,000   1,800,000   1,332,709          --      250,000      --       161,800
 
Jack A. Blaine(6).............  2000    450,000      75,000       5,795                   75,000      --        93,627
  Executive Vice President      1999    375,000     200,000       9,445          --       75,000      --        91,827
                                1998    366,668     225,000      11,892          --       60,000      --        32,559
 
George R. Gazerwitz...........  2000    450,012     180,000          --                  100,000      --       114,894
  Executive Vice President      1999    441,678     300,000          36          --      125,000      --       113,094
                                1998    435,674     325,000       6,020          --      100,000      --        60,790
 
Joseph W. McGrath(7)..........  2000    450,000      75,000          --                   75,000      --        76,861
  Executive Vice President      1999    321,675     310,000     217,989   2,011,875       80,000      --        70,880
 
Janet B. Wallace(8)...........  2000    360,000     120,000      13,457          --       50,000      --        47,841
  Senior Vice President         1999     50,000      80,000      28,035          --       25,000      --           188
</TABLE>

 
---------------
(1) Amounts shown include compensation deferred under the Unisys Savings Plan or
    the Unisys Corporation Deferred Compensation Plan.
 
(2) All amounts shown for 2000 are tax reimbursements.
 
(3) Amounts shown in this column are the dollar value of restricted stock awards
    based on the closing market price of Unisys Common Stock on the date of
    grant. Mr. McGrath was originally awarded 58,000 restricted share units on
    January 6, 1999. The grant vests over three years, with one-third vesting
    each year beginning January 6, 2000. Upon vesting, restricted share units
    are payable in shares of Unisys Common Stock. At December 31, 2000, Mr.
    McGrath held 38,666 restricted share units with a value of $565,490.
 
(4) Although the Company's long-term incentive plan permits grants of
    free-standing stock appreciation rights and the payment of performance
    awards, no such grants or payments were made to any of the Named Officers
    during the years presented.
 
(5) Amounts shown for 2000 for each Named Officer consist of $3,400 in Company
    matching contributions under the Unisys Savings Plan and the full amount of
    premiums paid by Unisys for life insurance as follows:
    Mr. Weinbach - $328,813; Mr. Blaine - $90,227; Mr. Gazerwitz - $111,494;
    Mr. McGrath - $70,461; Ms. Wallace - $44,441.
 
(6) Mr. Blaine was a Senior Vice President of Unisys during 1998 and 1999. He
    was elected an Executive Vice President effective January 1, 2000.
 
(7) Mr. McGrath joined Unisys as a Senior Vice President in January 1999. He was
    elected an Executive Vice President effective January 1, 2000.
 
(8) Ms. Wallace joined Unisys as a Vice President in November 1999. She was
    elected a Senior Vice President effective January 1, 2000.
 
                                        10

<PAGE>   15
 
OPTION GRANTS IN LAST FISCAL YEAR
 
     The following table sets forth information on grants of stock options
during 2000 to the Named Officers. No stock appreciation rights were granted
during 2000.
 

<TABLE>
<CAPTION>
                                                                                     POTENTIAL REALIZABLE VALUE
                                                                                      AT ASSUMED ANNUAL RATES
                                                                                    OF STOCK PRICE APPRECIATION
                                INDIVIDUAL GRANTS                                       FOR OPTION TERMS(1)
---------------------------------------------------------------------------------   ----------------------------
                                  NUMBER OF       % OF
                                  SECURITIES     TOTAL
                                  UNDERLYING    OPTIONS     EXERCISE
                                   OPTIONS     GRANTED TO   OR BASE
                                  GRANTED(2)   EMPLOYEES    PRICE(3)   EXPIRATION
NAME                                 (#)        IN 2000      ($/SH)     DATE(4)        5%($)          10%($)
----                              ----------   ----------   --------   ----------   ------------   -------------
<S>                               <C>          <C>          <C>        <C>          <C>            <C>
Lawrence A. Weinbach............   400,000        5.2        34.125     2/17/10      8,599,500      21,703,500
Jack A. Blaine..................    75,000        1.0        34.125     2/17/10      1,612,406       4,069,406
George R. Gazerwitz.............   100,000        1.3        34.125     2/17/10      2,149,875       5,425,875
Joseph W. McGrath...............    75,000        1.0        34.125     2/17/10      1,612,406       4,069,406
Janet B. Wallace................    50,000        0.7        34.125     2/17/10      1,074,938       2,712,938
</TABLE>

 
---------------
 
(1) Illustrates value that might be realized upon exercise of options
    immediately prior to the expiration of their term, assuming specified annual
    rates of appreciation on Unisys Common Stock over the term of the options.
    Assumed rates of appreciation are not necessarily indicative of future stock
    performance.
 
(2) Options were granted on February 17, 2000. Options become exercisable in
    four equal annual installments, beginning one year after the date of grant.
    Options become immediately exercisable in the event of a change in control
    (as defined in the long-term incentive plan).
 
(3) The exercise price per share is the fair market value (calculated as the
    average of the high and low quoted sales prices through the official close
    of the New York Stock Exchange at 4:00 p.m.) of a share of Unisys Common
    Stock on the date of grant. Options may be exercised with cash and/or with
    other shares of Unisys Common Stock or with any other form of consideration
    permitted by the Corporate Governance and Compensation Committee.
 
(4) The options were granted for a term of ten years, subject to earlier
    termination in certain events related to termination of employment.
 
OPTION EXERCISES AND FISCAL YEAR-END VALUES
 
     The following table sets forth information with respect to option exercises
during 2000 and unexercised stock options held by the Named Officers at December
31, 2000.
 

<TABLE>
<CAPTION>
                                                         NUMBER OF SECURITIES
                                                        UNDERLYING UNEXERCISED       VALUE OF UNEXERCISED IN-
                                                              OPTIONS AT               THE-MONEY OPTIONS AT
                               SHARES                      DECEMBER 31, 2000           DECEMBER 31, 2000(1)
                              ACQUIRED      VALUE                 (#)                           ($)
                             ON EXERCISE   REALIZED   ---------------------------   ---------------------------
NAME                             (#)         ($)      EXERCISABLE   UNEXERCISABLE   EXERCISABLE   UNEXERCISABLE
----                         -----------   --------   -----------   -------------   -----------   -------------
<S>                          <C>           <C>        <C>           <C>             <C>           <C>
Lawrence A. Weinbach.......        --           --      965,750       1,047,250      2,132,275       710,925
Jack A. Blaine.............    10,000      259,275       78,000         170,000        220,359        73,281
George R. Gazerwitz........        --           --      147,500         258,750        519,688       125,625
Joseph W. McGrath..........        --           --       20,000         135,000             --            --
Janet B. Wallace...........        --           --        6,259          68,750             --            --
</TABLE>

 
---------------
 
(1) Difference between the closing price for Unisys Common Stock on December 29,
    2000 and the exercise price.
 
                                        11

<PAGE>   16
 
PENSION PLANS
 
     The table below shows the aggregate annual amounts at age 65 that would be
received from the Unisys Pension Plan (the "Pension Plan"), the Supplemental
Executive Retirement Plan (the "Supplemental Plan"), and the Elected Officer
Pension Plan (the "Officer Plan").
 
     The Pension Plan and Supplemental Plan generally are available to all
employees located in the United States. The Officer Plan is available to
officers, including the Named Officers, who satisfy certain minimum service
requirements. The aggregate pension amount payable under the Officer Plan is
offset by benefits paid under the Pension Plan, the Supplemental Plan, and any
applicable subsidiary plan. The amounts shown in the table are computed on a
single life annuity basis and are subject to a reduction equal to 50% of the
participant's primary social security benefit.
 

<TABLE>
<CAPTION>
                                               YEARS OF SERVICE
   ASSUMED FINAL       -----------------------------------------------------------------
AVERAGE COMPENSATION      5          10         15         20         25      30 OR MORE
--------------------   --------   --------   --------   --------   --------   ----------
<S>                    <C>        <C>        <C>        <C>        <C>        <C>
     $  200,000        $ 40,000   $ 80,000   $ 90,000   $100,000   $110,000   $  120,000
        300,000          60,000    120,000    135,000    150,000    165,000      180,000
        400,000          80,000    160,000    180,000    200,000    220,000      240,000
        500,000         100,000    200,000    225,000    250,000    275,000      300,000
        600,000         120,000    240,000    270,000    300,000    330,000      360,000
        700,000         140,000    280,000    315,000    350,000    385,000      420,000
        800,000         160,000    320,000    360,000    400,000    440,000      480,000
        900,000         180,000    360,000    405,000    450,000    495,000      540,000
      1,000,000         200,000    400,000    450,000    500,000    550,000      600,000
      1,100,000         220,000    440,000    495,000    550,000    605,000      660,000
      1,200,000         240,000    480,000    540,000    600,000    660,000      720,000
      1,300,000         260,000    520,000    585,000    650,000    715,000      780,000
      1,400,000         280,000    560,000    630,000    700,000    770,000      840,000
      1,500,000         300,000    600,000    675,000    750,000    825,000      900,000
      1,600,000         320,000    640,000    720,000    800,000    880,000      960,000
      1,700,000         340,000    680,000    765,000    850,000    935,000    1,020,000
</TABLE>

 
     Final Average Compensation generally corresponds to the amounts shown in
the Summary Compensation Table under the headings Salary and Bonus. However,
Final Average Compensation is calculated using the individual's highest 60
consecutive months of compensation out of the final 120 months of employment and
thus will differ somewhat from the amounts shown in the Summary Compensation
Table. Final Average Compensation for the Named Officers as of March 1, 2001 is
as follows: J. A. Blaine - $533,786; G. R. Gazerwitz - $640,000; J. W.
McGrath - $517,849; J. B. Wallace - $465,000. Full years of credited service
under the pension plans for the Named Officers as of March 1, 2001 are as
follows: J. A. Blaine - 17 years; G. R. Gazerwitz - 19 years; J. W.
McGrath - two years; J. B. Wallace - one year.
 
     Pursuant to the employment agreement described below, Lawrence A. Weinbach
is vested in an annual pension benefit as follows: 0-3 years of service -
$350,000; 4 years - $570,000; 5 years - $710,000; 6 years - $860,000; 7 or more
years - $1,000,000.
 
                                        12

<PAGE>   17
 
EMPLOYMENT AGREEMENTS
 
     On September 23, 1997, the Company entered into a five-year employment
agreement with Lawrence A. Weinbach, covering the terms and conditions of Mr.
Weinbach's employment as Chairman of the Board, President and Chief Executive
Officer. The agreement provides for a minimum base salary of $1,200,000 per
year, subject to annual review by the Corporate Governance and Compensation
Committee, and eligibility for an annual bonus award at a target bonus level of
not less than 100% of base salary. The actual bonus payable, if any, is to be
determined by the Corporate Governance and Compensation Committee in its sole
discretion. Mr. Weinbach is eligible to participate in the benefit programs
generally made available to executive officers, is entitled to the pension
benefits discussed above, and is eligible to receive stock option and other
long-term incentive awards under the Company's long-term incentive plan. If Mr.
Weinbach's employment is terminated under certain circumstances, the agreement
provides for him to receive continued payment of his base salary for the
remainder of the term (but in no event less than one year's base salary) and,
for the one-year period following the date of termination, a bonus in an amount
equal to his target bonus percentage times the base salary paid during such
period. He will also be entitled to continued medical and dental coverage
through the remaining term of the agreement, full vesting in outstanding awards
under the long-term incentive plan, and one additional year of service for
pension purposes. Salary continuation amounts paid to Mr. Weinbach after two
years from the date of employment termination will be reduced by the amount of
any cash compensation he receives for services rendered to any entity other than
Unisys. Mr. Weinbach is also party to a change in control agreement with the
Company, as described below. He is not entitled to receive duplicate payments
under the change in control agreement and his employment agreement.
 
     The Company and Joseph W. McGrath are parties to a three-year employment
agreement terminating in January 2002. Under the agreement, Mr. McGrath is
entitled to an annual base salary of $325,000 and eligibility for an annual
bonus at a target of 55% of annual salary. The agreement provides that the
actual bonus amount can vary from zero to 150% of target. Mr. McGrath is
eligible to participate in the benefit programs generally made available to
executive officers and is eligible to receive stock option and other long-term
incentive awards under the Company's long-term incentive plan. If Mr. McGrath's
employment terminates under certain circumstances, he will be entitled to
receive continued payment of his base salary, a bonus payment at 100% of target,
and continued medical and dental benefits for the remaining term of the
agreement, or twelve months from the date of termination, whichever is greater.
Mr. McGrath is also party to a change in control agreement. He is not entitled
to receive duplicate payments under the change in control agreement and his
employment agreement.
 
CHANGE IN CONTROL EMPLOYMENT AGREEMENTS
 
     The Company has entered into change in control employment agreements with
its executive officers including the Named Officers. The agreements are intended
to retain the services of these executives and provide for continuity of
management in the event of any actual or threatened change in control. A change
in control is generally defined as (i) the acquisition of 20% or more of Unisys
Common Stock, (ii) a change in the majority of the Board of Directors unless
approved by the incumbent directors (other than as a result of a contested
election), and (iii) certain reorganizations, mergers, consolidations,
liquidations or dissolutions. Each agreement has a term ending on the third
anniversary of the date of the change in control. These agreements, which are
the same in substance for each executive, provide that in the event of a change
in control each executive will have specific rights and receive certain
 
                                        13

<PAGE>   18
 
benefits. Those benefits include the right to continue in the Company's employ
during the term, performing comparable duties to those being performed
immediately prior to the change in control and at compensation and benefit
levels that are at least equal to the compensation and benefit levels in effect
immediately prior to the change in control. Upon a termination of employment
under certain circumstances following a change in control, the terminated
executive will be entitled to receive special termination benefits, including a
lump sum payment equal to three years base salary and bonus and the actuarial
value of the pension benefit the executive would have accrued had the executive
remained employed for three years following the termination date. The special
termination benefits are payable if the Company terminates the executive without
cause, the executive terminates employment for certain enumerated reasons
(including a reduction in the executive's compensation or responsibilities or a
change in the executive's job location), or the executive voluntarily terminates
employment for any reason during the 30-day period following the first
anniversary of the date of the change in control. If any payment or distribution
by the Company to the executive is determined to be subject to the excise tax
imposed by Section 4999 of the Internal Revenue Code, the executive is entitled
to receive a payment on an after-tax basis equal to the excise tax imposed. The
executive is under no obligation to mitigate amounts payable under these
agreements, and to the extent the executive has a separate employment agreement
with the Company with conflicting rights, the executive is allowed the greater
entitlement.
 
T
RANSACTIONS WITH MANAGEMENT
 
     During 2000, the law firm Pepper Hamilton LLP provided legal services to
Unisys for fees of approximately $1.2 million. The husband of Nancy Straus
Sundheim is a partner in that firm. Ms. Sundheim was elected Senior Vice
President, General Counsel and Secretary of Unisys effective January 1, 2001.
 
C
OMPENSATION OF DIRECTORS
 
     The Company's non-employee directors receive an annual retainer of $35,000,
an annual attendance fee of $10,000 for regularly scheduled Board and committee
meetings, and a meeting fee of $1,000 for attendance at each Board and committee
meeting other than a regularly scheduled meeting. Chairmen of committees other
than the nominating committee also receive an annual $5,000 retainer. During
2000, each non-employee director also received an option to purchase 10,000
shares of Unisys Common Stock. Stock options vest in four equal annual
installments beginning one year after the date of grant. The annual retainers
and annual attendance fee are paid in monthly installments, with 50% of each
installment paid in cash and 50% in the form of common stock equivalent units
("Stock Units"). The value of each Stock Unit at any point in time is equal to
the value of one share of Unisys Common Stock. Stock Units are recorded in a
memorandum account maintained for each director. A director's Stock Unit account
is payable in Unisys Common Stock, either upon termination of service or on any
date at least five years (two years for Stock Units awarded after January 1,
2001) after the Stock Units are awarded, at the director's option. Directors do
not have the right to vote with respect to any Stock Units. Directors also have
the opportunity to defer until termination of service, or until any date at
least five years (two years for deferrals made after January 1, 2001) after the
deferral, all or a portion of their cash fees. Any deferred cash amounts, and
earnings or losses thereon, are recorded in a memorandum account maintained for
each director. The right to receive future payments of deferred cash accounts is
an unsecured claim against the Company's general assets. Directors who are
employees of the Company do not receive any cash, Stock Units, or stock options
for their services as directors.
 
                                        14

<PAGE>   19
 
         REPORT OF THE CORPORATE GOVERNANCE AND COMPENSATION COMMITTEE
 
COMPENSATION PROGRAM AND POLICIES
 
     The Corporate Governance and Compensation Committee oversees the Company's
executive compensation program. In this capacity, the Committee reviews
compensation levels of elected officers, evaluates performance, considers
management succession and related matters, and administers the Company's
incentive plans, including the Executive Variable Compensation Plan (the "EVC
Plan") and the 1990 Unisys Long-Term Incentive Plan (the "LTIP").
 
     The Company's executive compensation program is designed to attract and
retain executives responsible for the Company's long-term success, to reward
executives for achieving both financial and strategic company goals, to align
executive and stockholder interests through long-term, equity-based plans, and
to provide a compensation package that recognizes individual contributions as
well as overall business results. As a result, a substantial portion of each
executive's total compensation is intended to be variable and to be tied closely
to the achievement of specific business objectives and corporate financial
goals, as well as the attainment of the executive's individual performance
objectives. The Company's executive compensation program also takes into account
the compensation practices of companies with whom Unisys competes for executive
talent. These companies (the "peer companies") include the principal companies
included in the peer group indices in the Performance Graph on page 17 of this
Proxy Statement and additional companies in various industries.
 
     The three key components of the Company's executive compensation program
for 2000 were base salary, short-term incentive payments, and long-term
incentive awards in the form of stock options. Overall compensation is intended
to be competitive for comparable positions at the peer companies.
 
     The Company's policies with respect to each of the elements of its
executive compensation program, as well as the basis for the compensation
awarded to the chief executive officer, are discussed below.
 
BASE SALARY
 
     Each executive's base salary is initially determined with reference to
competitive pay practices and is dependent upon the executive's level of
responsibility and experience. The Committee uses its discretion, rather than a
formal weighting system, to evaluate these factors and to determine individual
base salary levels. Thereafter, base salaries are reviewed periodically, and
increases are made based on the Committee's subjective assessment of individual
performance, as well as the factors discussed above.
 
SHORT-TERM INCENTIVE PAYMENTS
 
     For 2000, all of the Company's executive officers participated in the EVC
Plan. This plan's stated purpose is to motivate and reward elected officers and
other key executives for the attainment of individual and/or corporate
performance goals. Under the plan, the Committee has the discretion to determine
the conditions (including performance objectives) applicable to annual award
payments and the amounts of such awards. Awards under the EVC Plan for 2000 were
generally determined as follows.
 
     Executives were assigned target award amounts for the year, which were
typically stated as a percentage of base salary (ranging, in the case of elected
officers other than the chief
 
                                        15

<PAGE>   20
 
executive officer, from 45% to 60%). Performance goals were also established
based upon the financial performance of Unisys (generally, achievement of
pre-established objectives for revenue, earnings per share, and cash flow) and
upon individual performance objectives. Actual award amounts could range from
zero to 150% of target, depending upon the attainment of financial goals and the
Committee's assessment of the individual's performance. Although the Company did
not meet all the financial objectives established for 2000, it made significant
progress in the repositioning of its business to meet the demands of the
e-business marketplace and continued to enhance its financial condition.
Accordingly, EVC awards for the year to executive officers were based primarily
on the Committee's assessment of individual performance.
 
LONG-TERM INCENTIVE AWARDS
 
     Under the LTIP, stock options may be granted to the Company's executive
officers and other key employees. The size of stock option awards is based
primarily on individual performance and level of responsibilities with Unisys.
The Committee does not determine the size of such awards by reference to the
amount or value of stock options currently held by an executive officer.
 
     Stock options are designed to align the interests of executives with those
of stockholders. Stock options are granted with an exercise price equal to the
average market price of Unisys Common Stock on the date of grant, and current
grants vest over four years. This approach is designed to encourage the creation
of stockholder value over the long term since no benefit is realized unless the
price of the Common Stock rises over a number of years.
 
COMPENSATION OF THE CHIEF EXECUTIVE OFFICER
 
     Lawrence A. Weinbach became the Company's Chairman, President and Chief
Executive Officer on September 23, 1997. In connection with his employment, the
Company entered into the employment agreement described at page 13. Under the
employment agreement, Mr. Weinbach is entitled to a base salary at the rate of
$1,200,000 per year, subject to annual review by the Committee. He is also
eligible for an annual bonus at a target of 100% of base salary, with the actual
amount of bonus paid to be determined by the Committee in its sole discretion,
based upon such factors as the Committee deems appropriate. In March 1999, the
Committee increased Mr. Weinbach's base salary to its current level of
$1,320,000 per year. For 2000, although the Company did not meet all its
financial objectives, the Committee awarded Mr. Weinbach a bonus of $396,000 in
recognition of his aggressive actions to strategically and financially
reposition the Company during the year. In 2000, Mr. Weinbach also was granted
the stock options described on page 11.
 
DEDUCTIBILITY OF EXECUTIVE COMPENSATION
 
     Section 162(m) of the Internal Revenue Code imposes a $1 million annual
limit on the amount of compensation that may be deducted by the Company with
respect to each Named Officer employed as of the last day of the applicable
year. The limitation does not apply to compensation based on the attainment of
objective performance goals. The Committee has considered the impact of the
deduction limitation and has determined that it is not in the best interests of
the Company or its stockholders to base compensation solely on objective
performance criteria. Rather, the Committee believes that it should retain the
flexibility to base
 
                                        16

<PAGE>   21
 
compensation on its subjective evaluation of performance as well as on the
attainment of objective goals.
 
                                 Corporate Governance and Compensation Committee
 
                                                                 Henry C. Duques
                                                                Melvin R. Goodes
                                                                Kenneth A. Macke
 
 
                           STOCK PERFORMANCE GRAPH
 
     The following graph compares the yearly percentage change in the cumulative
total stockholder return on Unisys Common Stock during the five fiscal years
ended December 31, 2000 with the cumulative total return on the Standard &
Poor's 500 Stock Index, the Standard & Poor's Computers (Hardware) Index and the
Standard & Poor's Computers (Software and Services) Index. The comparison
assumes $100 was invested on December 31, 1995 in Unisys Common Stock and in
each of such indices and assumes reinvestment of dividends.
 
                                  [Line Graph]
 

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------------------
                                              1995        1996        1997        1998        1999        2000
------------------------------------------------------------------------------------------------------------------
<S>                                        <C>         <C>         <C>         <C>         <C>         <C>
 Unisys Corporation                            100         123         252         626         581         266
 S & P 500                                     100         123         164         211         255         232
 S & P Computers (Hardware)                    100         134         196         343         495         314
 S & P Computers (Software & Services)         100         155         217         392         726         343
</TABLE>

 
                                        17

<PAGE>   22
 
                                GENERAL MATTERS
 

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
 
     The Company's directors and officers are required to file reports with the
SEC relating to their ownership of Unisys equity securities. During 2000, Jack
A. Blaine had one late report covering two transactions, and Leo C. Daiuto had
one late report covering one transaction. Mr. Blaine and Mr. Daiuto are both
officers of Unisys.
 
P
OLICY ON CONFIDENTIAL VOTING
 
     It is the Company's policy that all stockholder proxies, ballots, and
voting materials that identify the vote of a specific stockholder shall, if
requested by that stockholder on such proxy, ballot, or materials, be kept
permanently confidential and shall not be disclosed to the Company, its
affiliates, directors, officers, and employees or to any third parties, except
as may be required by law, to pursue or defend legal proceedings, or to carry
out the purpose of, or as permitted by, the policy. Under the policy, vote
tabulators and inspectors of election are to be independent parties who are
unaffiliated with and are not employees of the Company. The policy provides that
it may, under certain circumstances, be suspended in the event of a proxy
solicitation in opposition to a solicitation of management. The Company may at
any time be informed whether or not a particular stockholder has voted. Comments
written on proxies or ballots, together with the name and address of the
commenting stockholder, will also be made available to the Company.
 
STOCKHOLDER PROPOSALS AND NOMINATIONS
 
     The deadline for submitting stockholder proposals to the Company for
inclusion in the proxy materials for the 2002 Annual Meeting of Stockholders is
November 15, 2001.
 
     Any stockholder who intends to present a proposal at the 2002 Annual
Meeting and has not sought to include the proposal in the Company's proxy
materials must give the Company notice of the proposal no later than January 26,
2002.
 
     Any stockholder who intends to make a nomination for the Board of Directors
at the 2002 Annual Meeting must deliver a notice to the Company no later than
January 25, 2002 setting forth (i) the name, age, business and residence
addresses of each nominee, (ii) the principal occupation or employment of each
nominee, (iii) the number of shares of Unisys capital stock beneficially owned
by each nominee, (iv) a statement that the nominee is willing to be nominated,
and (v) any other information concerning each nominee that would be required by
the SEC in a proxy statement soliciting proxies for the election of the nominee.
 
ELECTRONIC ACCESS TO PROXY MATERIALS AND ANNUAL REPORT
 
     This Proxy Statement and the 2000 Annual Report are available on the
Company's Internet site at www.unisys.com/investor/proxy2001 and
www.unisys.com/annual/annual2000. Most stockholders can elect to view future
proxy statements and annual reports over the Internet instead of receiving paper
copies in the mail and thus can save the Company the cost of producing and
mailing these documents. If you vote your shares over the Internet this year,
you will be given the opportunity to choose electronic access at the time you
vote. You can also choose electronic access by following the instructions that
you will receive in connection with next year's annual meeting. Most
stockholders who choose electronic access will receive an e-mail next year
 
                                        18

<PAGE>   23
 
containing the Internet address to use to access the proxy statement and annual
report. Your choice will remain in effect until you cancel it. You do not have
to elect Internet access each year.
 
OTHER MATTERS
 
     At the date of this Proxy Statement, the Board of Directors knows of no
matter that will be presented for consideration at the Annual Meeting other than
those described in this Proxy Statement. If any other matter properly comes
before the Annual Meeting, the persons appointed as proxies will vote thereon in
their discretion.
 
     The Company will bear the cost of soliciting proxies. Such cost will
include charges by brokers and other custodians, nominees, and fiduciaries for
forwarding proxies and proxy material to the beneficial owners of Unisys Common
Stock. Solicitation may also be made personally, or by telephone or telegraph,
by the Company's directors, officers, and regular employees without additional
compensation. In addition, the Company has retained Morrow & Co., Inc. to assist
in the solicitation of proxies for a fee of approximately $9,500, plus expenses.
 
                                          By Order of the Board of Directors,
 
                                          /S/ Nancy Straus Sundheim
                                          Nancy Straus Sundheim
                                          Senior Vice President, General Counsel
                                          and Secretary
Dated: March 15, 2001
 
                                        19

<PAGE>   24
 
                                                                      APPENDIX A
 
                               UNISYS CORPORATION
 
                            AUDIT COMMITTEE CHARTER
                ADOPTED BY THE BOARD OF DIRECTORS APRIL 27, 2000
 
PURPOSE
 
     The Audit Committee shall assist the Board of Directors in its oversight of
(1) the integrity of the Corporation's financial statements and its financial
reporting and disclosure practices, (2) the soundness of the Corporation's
systems of internal controls regarding finance and accounting compliance, (3)
the independence and performance of the Corporation's internal audit staff and
its independent auditors, and (4) the soundness of the Corporation's ethical and
environmental compliance programs.
 
     The Audit Committee has the authority to conduct any investigation
appropriate to fulfilling its responsibilities, and it shall have direct access
to the independent auditors as well as anyone in the Corporation. The Board and
the Audit Committee are to represent the Corporation's stockholders.
Accordingly, the independent auditors are accountable to the Board and the Audit
Committee.
 
MEMBERSHIP
 
     The Audit Committee shall consist of at least three Directors. The members
of the Audit Committee shall meet the independence and experience requirements
of the New York Stock Exchange. The members of the Audit Committee shall be
appointed at least annually by the Board, with one of the members appointed as
Committee Chair.
 
MEETINGS AND REPORTS
 
     The Audit Committee shall meet at least four times annually, or more
frequently as circumstances dictate. The Audit Committee is to meet in separate
executive sessions with the Corporation's Chief Financial Officer, its
independent auditors and its internal auditor at least once each year and at
other times when considered appropriate. The Audit Committee shall provide
regular reports to the Board.
 
RESPONSIBILITIES AND PROCESS
 
     In performing its oversight responsibilities, the Audit Committee shall:
 
          1. Review and assess the adequacy of this Charter annually and
     recommend any proposed changes to the Board for approval.
 
          2. Make recommendations to the Board regarding the appointment or
     termination of the independent auditors. The Audit Committee and the Board
     have the ultimate authority and responsibility to select, evaluate and,
     where appropriate, replace the independent auditors.
 
          3. Review the scope of the independent auditors' audit examination and
     the related fees.
 
          4. Review the independent audit results, including any material
     comments and recommendations on internal controls or accounting matters by
     the Corporation's independent auditors and the Corporation's responses
     thereto.
                                       A-1

<PAGE>   25
 
          5. Review the scope and effectiveness of internal auditing activities.
 
          6. Establish regular reporting to the Audit Committee by the
     independent auditors and the internal auditors regarding any significant
     difficulties encountered during the course of their review or audit,
     including any restrictions on the scope of work or access to required
     information.
 
          7. Review with management, the internal auditors and the independent
     auditors the adequacy and effectiveness of the Corporation's accounting and
     financial controls and the integrity of its financial reporting processes.
 
          8. Review interim financial statements with management and the
     independent auditors prior to the filing of the Corporation's quarterly
     report on Form 10-Q, including a discussion with the independent auditors
     of the matters required to be discussed by Statement of Auditing Standards
     No. 61 ("SAS No. 61"), as amended. This review may be conducted by the
     Chair of the Committee, or in his or her absence, any other Committee
     member.
 
          9. Review with management and the independent auditors the
     Corporation's annual financial statements prior to the filing of the
     Corporation's annual report on Form 10-K, including a discussion with the
     independent auditors of the matters required to be discussed by SAS No. 61,
     as amended.
 
          10. Establish regular reporting to the Audit Committee by management
     regarding significant judgments made in management's preparation of the
     financial statements.
 
          11. Review and approve, in advance, significant non-audit services to
     be performed by the independent auditors and the related fees.
 
          12. Oversee the independence of the independent auditors by (1)
     receiving from the independent auditors, at least annually, a formal
     written statement delineating all relationships between the independent
     auditors and the Corporation, (2) discussing with the independent auditors
     any disclosed relationships or services that may impact the objectivity and
     independence of the independent auditors and (3) recommending that the
     Board take appropriate action to satisfy itself of the independence of the
     independent auditors.
 
          13. Annually review the Corporation's compliance program for its Code
     of Ethical Conduct and the results of internal audit's review of the
     expense accounts of the Corporation's elected officers.
 
          14. Annually review the status of the Corporation's environmental
     compliance program.
 
          15. Review, with the Corporation's general counsel, any legal matter
     that could have a significant impact on the Corporation's financial
     statements.
 
     The Audit Committee's role is one of oversight. Management is responsible
for preparing the Corporation's financial statements, and the independent
auditors are responsible for auditing those financial statements. Management is
responsible for the fair presentation of the information set forth in the
financial statements in conformity with generally accepted accounting principles
("GAAP"). The independent auditors' responsibility is to provide its opinion,
based on their audits, that the financial statements fairly present, in all
material respects, the financial position, results of operations and cash flows
of the Corporation in
 
                                       A-2

<PAGE>   26
 
conformity with GAAP. However, it is not the duty of the Audit Committee to plan
or conduct audits or to determine that the Corporation's financial statements
are in conformity with GAAP. Further, it is not the duty of the Audit Committee
to conduct investigations, to resolve disagreements, if any, between management
and the independent auditors, or to assure compliance with applicable laws and
regulations, the Corporation's Code of Ethical Conduct or its environmental
compliance program.
 
                                       A-3

<PAGE>   27
                                     PROXY

                               UNISYS CORPORATION

               PROXY FOR ANNUAL MEETING TO BE HELD APRIL 26, 2001
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

The undersigned hereby appoints Melvin R. Goodes, Kenneth A. Macke and Lawrence
A. Weinbach, and each of them, proxies, with power of substitution, to vote all
shares of common stock which the undersigned is entitled to vote at the 2001
Annual Meeting of Stockholders of Unisys Corporation, and at any adjournments
thereof, as directed on the reverse side hereof with respect to the items set
forth in the accompanying proxy statement and in their discretion upon such
other matters as may properly come before the meeting. This card also provides
voting instructions (for shares credited to the account of the undersigned, if
any) to the trustee for the Unisys Savings Plan (the "Savings Plan") as more
fully described on page 2 of the proxy statement.



       IF YOU ARE VOTING BY MAIL, PLEASE MARK, DATE, SIGN AND RETURN THIS
              PROXY/VOTING INSTRUCTION CARD IN THE ENCLOSED ENVELOPE



                  (CONTINUED AND TO BE SIGNED ON REVERSE SIDE)

                                                                     SEE REVERSE
                                                                            SIDE
--------------------------------------------------------------------------------
                            - FOLD AND DETACH HERE -

                                 [UNISYS LOGO]

                         ANNUAL MEETING OF STOCKHOLDERS

                                 APRIL 26, 2001
                                    9:30 A.M.

                                 THE INN AT PENN
                                  SANSOM COMMON
                               3600 SANSOM STREET
                           PHILADELPHIA, PENNSYLVANIA

                             YOUR VOTE IS IMPORTANT
                              THANK YOU FOR VOTING

<PAGE>   28
        PLEASE MARK YOUR
  /X/   VOTES AS IN THIS
        EXAMPLE.

THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN.
IF NO DIRECTION IS GIVEN, THIS PROXY WILL BE VOTED FOR THE ELECTION OF DIRECTORS
AND FOR THE SELECTION OF AUDITORS, AND THE TRUSTEE FOR THE SAVINGS PLAN WILL
VOTE AS DESCRIBED ON PAGE 2 OF THE PROXY STATEMENT.

           THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR ITEMS 1 AND 2


1. ELECTION OF DIRECTORS

                         FOR ALL
             WITHHELD    EXCEPT
 FOR ALL     FROM ALL   AS NOTED

  / /          / /        / /


NOMINEES:

01  Henry C. Duques
02  Theodore E. Martin
03  Lawrence A. Weinbach


----------------------------------------
(EXCEPT NOMINEE(S) WRITTEN ABOVE)


 2. RATIFICATION OF SELECTION OF INDEPENDENT AUDITORS

  FOR        AGAINST     ABSTAIN

  / /          / /        / /

                                            MARK HERE TO HAVE
                                            YOUR VOTE REMAIN            / /
                                            CONFIDENTIAL


                                        Please sign exactly as name appears
                                        hereon. For joint accounts both owners
                                        should sign. When signing as executor,
                                        administrator, attorney, trustee,
                                        guardian, corporate officer, etc.,
                                        please give your full title.


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

                                        ----------------------------------------
                                        SIGNATURE(S)                  DATE
--------------------------------------------------------------------------------
- FOLD AND DETACH HERE ONLY IF YOU ARE RETURNING YOUR VOTED PROXY CARD BY MAIL -


                          VOTE BY TELEPHONE OR INTERNET

Unisys Corporation encourages you to take advantage of the convenient ways to
vote your shares on proposals covered in this year's Proxy Statement. You may
vote by mail, through the Internet or by telephone.

If you vote through the Internet or by telephone, please have your social
security number and proxy card available. The control number printed in the box
above, just below the perforation, and your social security number are necessary
to verify your vote. Your electronic vote authorizes the named proxies to vote
your shares in the same manner as if you marked, signed, dated and returned the
proxy card.



1.   VOTE BY MAIL. Mark, date, sign and return your proxy card in the enclosed
     envelope.



2.   VOTE BY TELEPHONE. Using a touch-tone telephone, call toll-free
     1-877-779-8683, 24 hours a day, 7 days a week from the U.S. and Canada.
     Follow the instructions that are provided.



3.   VOTE THROUGH THE INTERNET. Log onto the Internet at
     http://www.eproxyvote.com/uis, 24 hours a day, 7 days a week. Follow the
     instructions that are provided.



If you vote through the Internet or by telephone, do not return the proxy card.

                              THANK YOU FOR VOTING