Peter Altabef is chairman and CEO of Unisys, which he joined in January 2015. Peter served as president and CEO of MICROS Systems, Inc., until its acquisition by Oracle Corporation. He previously served as president and CEO of Perot Systems Corporation, until its acquisition by Dell Inc. Following that transaction, he served as president of Dell Services, the information technology services and business process solutions unit of Dell.

Altabef is a member of the boards of directors of EastWest Institute, NiSource Inc. and Petrus Trust Company, LTA. He is a member of the board of advisors of Merit Energy Company, LLC and a member of the President’s National Security Telecommunications Advisory Committee (NSTAC).

Altabef has served as senior advisor to 2M Companies, Inc. and as a director of MICROS Systems, Inc., Perot Systems Corporation and Belo Corp.

His professional activities have included membership on The Bretton Woods Committee, the Americas International Advisory Council of the International Business Leaders Forum and the advisory board of the Institute for Law and Technology of the Center for American and International Law.

His community service activities have included membership on the board of governors of the Dallas Symphony Association, the associates' board of Children's Medical Center Dallas, the board of advisors of Dallas Children's Theater, the Technology Committee of the Highland Park Independent School Board, the advisory board of the Dallas Museum of Natural History and as co-chairman of the American Heart Association Heart Walk Dallas.

Altabef received a J.D. degree from The University of Chicago Law School, and a B.A. degree in economics from Binghamton University, SUNY.