Microsoft open-sources “the earliest DOS source code discovered to date”

Several times in the last couple of decades, Microsoft has released source code for the original MS-DOS operating system that kicked off its decades-long dominance of consumer PCs. This week, the ...

Microsoft finally open sources DOS 1.0 - and it's so much more than the code

Microsoft finally open sources DOS 1.0 - and it's so much more than the code ...

Microsoft releases earliest known DOS source code

DOS, Microsoft is releasing the earliest known source code listings – transcribed from yellowed continuous printouts.
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Microsoft open-sources original 86-DOS 1.00 code on GitHub

Microsoft has released the source code for 86-DOS 1.00, the 45-year-old operating system that became the foundation for MS-DOS and PC-DOS, on GitHub under the permissive MIT license. The release ...