Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the persons whose signatures appear below constitute and appoint D. Craig Nordlund and Ann O. Baskins, and each of them, as true and lawful attorneys-in-fact and agents with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities to sign the Form S-8 Registration Statement pertaining to the Hewlett-Packard Company 1995 Incentive Stock Plan, and any or all amendments (including post-effective amendments) to said Form S-8 Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or their substitute or substitutes may lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Act of 1933, this Registration Statement and these Amendments to Registration Statements have been signed below by the following persons in the capacities and on the dates indicated. Moreover, the undersigned hereby also certify that to the best of their knowledge and belief the issuer meets all of the requirements for filing on Form S-8. Signature Title Date - --------- ------ ----- /s/ Raymond W. Cookingham Vice President and Controller 3/27/95 - -------------------------- ----------------------------- ------- Raymond W. Cookingham (Principal Accounting Officer) Director - ------------------------- ------- Thomas E. Everhart Director - ------------------------- ------- John B. Fery Director - ------------------------ ------- Jean-Paul G. Gimon /s/ Richard A. Hackborn Director 3/25/95 - ------------------------ ------- Richard A. Hackborn 11 Signature Title Date - --------- ----- ---- /s/ Harold J. Haynes Director 3/27/95 - ------------------------ ------- Harold J. Haynes /s/ Walter B. Hewlett Director 3/27/95 - ------------------------ ------- Walter B. Hewlett /s/ Shirley M. Hufstedler Director 3/24/95 - ------------------------- ------- Shirley M. Hufstedler Director - ------------------------ ------- George A. Keyworth /s/ Paul F. Miller Director 3/30/95 - ------------------------ ------- Paul F. Miller, Jr. /s/ Susan P. Orr Director 3/29/95 - ------------------------ ------- Susan P. Orr Director - ------------------------ ------- David W. Packard /s/ Donald E. Petersen Director 4/3/95 - ------------------------ ------- Donald E. Petersen /s/ Lewis E. Platt Chairman, President and 3/23/95 - ------------------------- Chief Executive Officer ------- Lewis E. Platt (Principal Executive Officer) /s/ Robert P. Wayman Executive Vice President, 3/23/95 - ------------------------- Finance and Administration ------- Robert P. Wayman (Chief Financial Officer and Director) 12