Exhibit 24

                   POWER OF ATTORNEY OF LOUIS V. GERSTNER, JR.

      KNOW ALL PERSONS BY THESE PRESENTS, that I, Louis V. Gerstner, Jr.,
Chairman of the Board of Directors and Chief Executive Officer of International
Business Machines Corporation, a New York corporation (the "Corporation"), which
is to file with the Securities and Exchange Commission (the "SEC"), Washington,
D.C., under the provisions of the Securities Act of 1933 one or more
Registration Statements on Form S-8, or other appropriate Form, for up to $600M
of additional obligations of the Corporation under the IBM Executive Deferred
Compensation Plan (the "Plan"), together with Plan interests, hereby constitute
and appoint Lawrence R. Ricciardi, John R. Joyce, Mark Loughridge, Walter S.
Berman, Daniel E. O'Donnell and Andrew Bonzani, and each of them, my true and
lawful attorneys-in-fact and agents, with full power to act, together or each
without the others, for me and in my name, place and stead, in any and all
capacities, to sign, or cause to be signed electronically, any and all of said
Registration Statements and any and all amendments to the aforementioned
Registration Statements and to file said Registration Statements and amendments
thereto so signed with all exhibits thereto, as well as to prepare, execute and
file any and all other documents in connection with such Plan with the SEC, all
state securities authorities under the Blue Sky and securities laws of the
States of the United States of America, and the New York Stock Exchange (and
other stock exchanges), hereby granting unto said attorneys-in-fact and agents,
and each of them, full power and authority to do and perform any and all acts
and things requisite and necessary to be done in and about the premises, as
fully to all intents and purposes as I might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, or any of
them may lawfully do or cause to be done by virtue hereof.

      IN WITNESS WHEREOF, I, the undersigned, have executed this Power of
Attorney as of this 25th day of January 2000.


                                    /s/ Louis V. Gerstner, Jr.
                                    --------------------------------
                                    Louis V. Gerstner, Jr.
                                    Chairman of the Board of Directors and Chief
                                    Executive Officer


                       POWER OF ATTORNEY OF JOHN R. JOYCE

      KNOW ALL PERSONS BY THESE PRESENTS, that I, John R. Joyce, Senior Vice
President and Chief Financial Officer of International Business Machines
Corporation, a New York corporation (the "Corporation"), which is to file with
the Securities and Exchange Commission (the "SEC"), Washington, D.C., under the
provisions of the Securities Act of 1933 one or more Registration Statements on
Form S-8, or other appropriate Form, for up to $600M of additional obligations
of the Corporation under the IBM Executive Deferred Compensation Plan (the
"Plan"), together with Plan interests, hereby constitute and appoint Louis V.
Gerstner, Jr., Lawrence R. Ricciardi, Mark Loughridge, Walter S. Berman, Daniel
E. O'Donnell and Andrew Bonzani, and each of them, my true and lawful
attorneys-in-fact and agents, with full power to act, together or each without
the others, for me and in my name, place and stead, in any and all capacities,
to sign, or cause to be signed electronically, any and all of said Registration
Statements and any and all amendments to the aforementioned Registration
Statements and to file said Registration Statements and amendments thereto so
signed with all exhibits thereto, as well as to prepare, execute and file any
and all other documents in connection with such Plan with the SEC, all state
securities authorities under the Blue Sky and securities laws of the States of
the United States of America, and the New York Stock Exchange (and other stock
exchanges), hereby granting unto said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform any and all acts and things
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as I might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them may
lawfully do or cause to be done by virtue hereof.

      IN WITNESS WHEREOF, I, the undersigned, have executed this Power of
Attorney as of this 25th day of January 2000.


                                /s/ John R. Joyce
                                    --------------------------------
                                    John R. Joyce
                                    Senior Vice President and
                                    Chief Financial Officer


                      POWER OF ATTORNEY OF MARK LOUGHRIDGE

      KNOW ALL PERSONS BY THESE PRESENTS, that I, Mark Loughridge, Vice
President and Controller of International Business Machines Corporation, a New
York corporation (the "Corporation"), which is to file with the Securities and
Exchange Commission (the "SEC"), Washington, D.C., under the provisions of the
Securities Act of 1933 one or more Registration Statements on Form S-8, or other
appropriate Form, for up to $600M of additional obligations of the Corporation
under the IBM Executive Deferred Compensation Plan (the "Plan"), together with
Plan interests, hereby constitute and appoint Louis V. Gerstner, Jr., Lawrence
R. Ricciardi, John R. Joyce, Walter S. Berman, Daniel E. O'Donnell and Andrew
Bonzani, and each of them, my true and lawful attorneys-in-fact and agents, with
full power to act, together or each without the others, for me and in my name,
place and stead, in any and all capacities, to sign, or cause to be signed
electronically, any and all of said Registration Statements and any and all
amendments to the aforementioned Registration Statements and to file said
Registration Statements and amendments thereto so signed with all exhibits
thereto, as well as to prepare, execute and file any and all other documents in
connection with such Plan with the SEC, all state securities authorities under
the Blue Sky and securities laws of the States of the United States of America,
and the New York Stock Exchange (and other stock exchanges), hereby granting
unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform any and all acts and things requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as I
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them may lawfully do or cause to be done
by virtue hereof.

      IN WITNESS WHEREOF, I, the undersigned, have executed this Power of
Attorney as of this 25th day of January 2000.


                                    /s/ Mark Loughridge
                                    ----------------------------
                                    Mark Loughridge
                                    Vice President and Controller


                        POWER OF ATTORNEY OF IBM DIRECTOR

      KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director of
International Business Machines Corporation, a New York corporation (the
"Corporation"), which is to file with the Securities and Exchange Commission
(the "SEC"), Washington, D.C., under the provisions of the Securities Act of
1933 one or more Registration Statements on Form S-8, or other appropriate Form,
for up to $600M of additional obligations of the Corporation under the IBM
Executive Deferred Compensation Plan (the "Plan"), together with Plan interests,
hereby constitute and appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi,
John R. Joyce, Mark Loughridge, Walter S. Berman, Daniel E. O'Donnell and Andrew
Bonzani, and each of them, my true and lawful attorneys-in-fact and agents, with
full power to act, together or each without the others, for me and in my name,
place and stead, in any and all capacities, to sign, or cause to be signed
electronically, any and all of said Registration Statements and any and all
amendments to the aforementioned Registration Statements and to file said
Registration Statements and amendments thereto so signed with all exhibits
thereto, as well as to prepare, execute and file any and all other documents in
connection with such Plan with the SEC, all state securities authorities under
the Blue Sky and securities laws of the States of the United States of America,
and the New York Stock Exchange (and other stock exchanges), hereby granting
unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform any and all acts and things requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as I
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them may lawfully do or cause to be done
by virtue hereof.

      IN WITNESS WHEREOF, I, the undersigned, have executed this Power of
Attorney as of this 25th day of January 2000.

                               /s/ Cathleen Black
                               -----------------------------
                               Director


                               /s/ Kenneth I. Chenault
                               -----------------------------
                               Director


                               /s/Juergen Dormann
                               -----------------------------
                               Director


                               /s/Nannerl O. Keohane
                               -----------------------------
                               Director


                               /s/Minoru Makihara
                               -----------------------------
                               Director


                                /s/ Lucio A. Noto
                               -----------------------------
                                Director


                               /s/ John B. Slaughter
                               -----------------------------
                               Director


                               /s/ Alex J. Trotman
                               -----------------------------
                               Director


                               /s/ Lodewijk C. van Wachem
                               -----------------------------
                               Director


                               /s/ Charles M. Vest
                               -----------------------------
                               Director