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Microsoft acquired a program in 1981 called QDOS (Quirky and Dirty operating system) for $25,000 and went on to rename it MS-DOS. IBM soon partnered with the company and MS-DOS became the preferential IBM PC OS.

Microsoft acquired a program in 1981 called QDOS (Quirky and Dirty operating system) for $25,000 and went on to rename it MS-DOS. IBM soon partnered with the company and MS-DOS became the preferential IBM PC OS.

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Tags: ms-dos
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