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.
Ars Technica

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 ...
PC World

Microsoft open-sources 86-DOS 1.00, the ancestor of Windows

Microsoft open-sourced 86-DOS 1.00 source code on GitHub for its 45th anniversary, according to PCWorld, including kernel and PC-DOS development snapshots. This historically significant software, ...