QDOS

(Quick and Dirty Operating System) The CP/M-like operating system developed by Seattle Computer Products. Microsoft purchased it for $50,000 and turned it into PC-DOS and MS-DOS. The rest is history. See CPM.

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QDOS may refer to:

• Sinclair QDOS, the Sinclair QL operating system
• 86-DOS, predecessor of MS-DOS, originally shipped as (Quick and Dirty Operating System)
• Atari QDOS, the production codename of Disk Operating System 4.0 for Atari 8-Bit computers
• Q:Dos, a recording name for trance musicians Scott Bond, Darren Hodson, John Purser, Nick Rose

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