John Warnock (b.
October 6,
1940) is an American
computer scientist best known as the co-founder with
Charles Geschke of
Adobe Systems Inc., the graphics and publishing software company. Although retired as
CEO in
2001, he still co-chairs the board with Geschke.Warnock was born in
Salt Lake City, Utah. He has a
B.S. in
mathematics and
philosophy, an
M.S. in mathematics, and a
Ph.D. in
electrical engineering, all from the
University of Utah. Prior to co-founding Adobe, Warnock worked for Geschke at
Xerox's Palo Alto Research Center (
PARC), where he had started in
1978. Unable to convince Xerox management of the approach to commercialize Warnock's
Interpress graphics language for controlling
printing, the two left Xerox to start Adobe in
1982. At their new company, they developed an equivalent technology,
PostScript, from scratch, and brought it to market.
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