Photograph

Tim Paterson, original author of MS-DOS, Tukwila, February 10, 1986

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While an employee at Seattle Computer Products in Tukwila, Tim Paterson developed a disk operating system, 86-DOS, to run the company’s newly developed computer. Microsoft purchased the rights to 86-DOS, did some further development, and renamed it MS-DOS. Microsoft made a quick deal with IBM, which used MS-DOS to operate its first personal computer.

This image shows Tim Paterson pointing to the pertinent part of a computer circuit board. In subsequent years, Paterson alternated working at Microsoft and at his own companies.

Caption information source: “A conversation with Tim Paterson: Creator of MS-DOS gives Microsoft some credit”, by Carol Smith Monkman, Seattle Post-Intelligencer, February 10, 1986, page B8.
Caption information source: “A P-I Special Report: Bill Gates: of Mind and Money”, by James Wallace and Jim Erickson, Seattle Post-Intelligencer, May 8, 1991, pages A1, A4.
ID Number: 2000.107.073.28.01
Date: 1986
Creator(s): Smith, Kurt, Photographer
Physical Description: 1 photographic print : b&w ; 8 x 10 in.
Credit: MOHAI, Seattle Post-Intelligencer Collection, 2000.107.073.28.01, photo by Kurt Smith
Copyright: All Rights Reserved