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

Follow ZDNET: Add us as a preferred source on Google. PC-DOS 1.00 would lead to Microsoft becoming computing's top dog Microsoft continues to embrace open source. The source code and annotations ...
TechSpot

Microsoft releases the earliest DOS source code ever discovered as open source

Editor's take: Microsoft continues to tightly control the release of some of its most important pieces of legacy software. While enthusiasts and programmers are eager to see newer versions of MS-DOS ...
ZDNet

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

PC-DOS 1.00 would lead to Microsoft becoming computing's top dog Microsoft continues to embrace open source. The source code and annotations provide insight into the operating system's earliest days.