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and its rebranded version IBM PC-DOS were Disk Operating Systems by Microsoft for 16-bit 8086 and x86 Real mode based IBM PCs and compatibles. Microsoft first licensed, then purchased 86-DOS from Seattle Computer Products (SCP), which was modified for the IBM PC by Microsoft employee Bob O'Rear with assistance from SCP (later Microsoft) employee Tim Paterson.
Starting MS-DOS [1]

See also

DOS Engines

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Forum Posts

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Operating System



  1. ^ MS-DOS 6.22 booting, from QEMU. Image created by Mike Swanson, June 22, 2009, MS-DOS © 1994 Microsoft , Wikimedia Commons
  2. ^ Re: Does DOSBOX accept Mephisto Genius 3? by Ed Schröder, CCC, April 04, 2015
  3. ^ Internet Archive MS-DOS games in the browser by James Constance, CCC, November 18, 2017
  4. ^ More DOS oldies by Ed Schroder, CCC, February 03, 2018

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