General Partner at U.S. Venture Partners
Retired president and CEO of business incubator Interval Research Corporation, co-founded with Paul Allen in 1992.
Founder, president and CEO of Metaphor which was acquired by IBM in 1991, which named him Vice President of Business development for IBM Personal Systems.
Served on the board of directors of Sybase, Broderbund Software, Borland International and Ticketmaster, and is currently on the board of the New York Times Company.
Served on the DARPA Information Science and Technology Committee, and as chair of the NAS Computer Science and Telecommunications board.
Senior Fellow at the Royal College of Art.
Served on the board of the Children's Discovery Museum of San Jose through 2004.
Currently on the boards of the Colleges of Engineering at Stanford University, UC Berkeley and the University of Michigan.