This Day in History

		November 2009

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November 6, 1980

Microsoft Signs Contract with IBM to Create Operating System

Microsoft signs a contract with IBM to create an operating system for the new IBM PC. The PC ignited the personal computer market, making home computers popular among more than just hobbyists. Microsoft cofounders Bill Gates and Paul Allen developed the Microsoft Disk Operating System, commonly known as MS-DOS, using existing software from a Seattle company as a foundation.