John Sierra
Revision as of 18:57, 15 April 2016 by Martini (talk | contribs) (Created page with "He was the OS/2 Operating System Development at IBM from 1989 to 1997. ==Contact Information== * https://www.linkedin.com/in/sierrajohn Category:Contributors")
He was the OS/2 Operating System Development at IBM from 1989 to 1997.