This is a rare look at the tech giant's first operating system ...
The source code for 86-DOS 1.00, the OS that eventually became MS-DOS and Windows, is now available on GitHub.
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In context: Back in 1980, Tim Paterson was creating a new operating system he called QDOS or Quick and Dirty Operating System. The system was later renamed 86-DOS, as it was being designed to run on ...
TL;DR: Microsoft will likely never release the original source code of Windows into the wild, but the company is clearly interested in sharing important episodes of its software development history.