Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Cathleen P. Black
------------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Harold Brown
-----------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ J. Dormann
----------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Nannerl O. Keohane
-------------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Charles F. Knight
-------------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Lucio A. Noto
---------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ John B. Slaughter
-------------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Alex Trotman
-----------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Lodewijk C. van Wachem
---------------------------
Director
Exhibit 24
POWER OF ATTORNEY OF IBM DIRECTOR
---------------------------------
KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned
director of International Business Machines Corporation, a New York
corporation (the "Corporation"), which is to file with the
Securities and Exchange Commission (the "SEC") under the provisions
of the Securities Act of 1933, as amended, one or more Registration
Statements on Form S-4, or other appropriate Form, for shares of
capital stock of the Corporation to be issued in connection with the
acquisition by the Corporation of Unison, hereby constitute and
appoint Louis V. Gerstner, Jr., Lawrence R. Ricciardi, John E.
Hickey, John R. Joyce and Jeffrey D. Serkes, 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, and with any and all
other documents in connection therewith, with the SEC, 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 conforming 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 29th day of July, 1997.
/s/ Charles M. Vest
-------------------------
Director