Famous as the founder of Digital Research, Inc., and as the creator of an operating system called CP/M (the Control Program for Microcomputers), he tried, but failed, to license his product to IBM.
After earning his bachelor's degree from the University of Washington, he taught at Monterey, California's Naval Postgraduate School and began programming for an early Intel microprocessor. He later returned to his alma mater and completed his computer science Ph.D.
He died suddenly in his early fifties, having suffered a head injury, possibly as the result of a fall.
Born to a family of Scandinavian heritage, he spent his youth in Seattle, Washington. He was married twice -- first to Dorothy McEwen Kildall and later to Karen Kildall.
Microsoft founder Bill Gates attempted to orchestrate a deal between IBM and Kildall's Digital Research company.