Dorothy McEwen

Age: 61

Summary: former wife of software pioneer Gary Kildall (d. 1994) who missed the chance to supply IBM with the operating system for its first personal computer, in which the story of how Kildall's Digitial Research Inc. lost IBM's business at the birth of the PC industry is a Silicon Valley legend.

Cause of Death: Brain cancer

Born: March 3, 1943

Died: January 31, 2005

Location: Carmel Valley, California