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06/11/1980 Microsoft wins a landmark deal

3:45

Birth of the Microsoft DOS

24:07

Microsoft Targets DOS

1:02

This Day In History: August 12 - IBM Personal Computer Released (1981)

After negotiations with Digital Research failed, IBM awarded a contract to Microsoft in November 1980 to provide a version of the CP/M OS, which was set to be used in the upcoming IBM PC.For this deal, Microsoft purchased a CP/M clone called 86-DOS from Seattle Computer Products, which it branded as MS-DOS, though IBM rebranded it to PC DOS.
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