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[Ancestors of the OS, Part 5] The $50,000 'Quick and Dirty' that ruled the world—MS-DOS, still haunted by the shadow of CP/M

I found the code of an 'empire' in a corner of GitHub. MS-DOS 1.25. It is an operating system written in 8086 assembly by Tim Paterson in 1981. Approximately 4,000 lines. 85% assembly.The development ...