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1. An acronym for Quick and Dirty Operating System.

2. An operating system originally written by Tim Paterson of Seattle Computer Products.  This operating system was designed for Intel’s 16-bit 8086 CPU and the first version was shipped in August of 1980 and had a development cycle of 6 weeks.  QDOS was purchased by Microsoft and rebranded as MS-DOS 1.0.


Quick and Dirty Operating System

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