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

For students of early PC history, this isn’t even the first piece of 86-DOS history that has been newly rediscovered this ...

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 Open Sources Some of the Earliest MS-DOS Code

Microsoft today announced the release of the source code for he 86-DOS 1.00 kernel, which is among the earliest code for what ...

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

Microsoft has officially released another significant piece of DOS history. The "Paterson Listings" include the earliest ...
TweakTown

Original Fallout source code was apparently never lost and has been preserved through decades

TL;DR: The original Fallout 1 and 2 source code was never lost; Interplay founder Rebecca Heineman preserved backups by archiving all projects on CDs in the 90s. Despite common belief, she retained ...
Redmondmag.com

Microsoft Open Sources Earliest DOS Code on Anniversary

Microsoft on Tuesday released the earliest known DOS source code materials found to date to mark the 45th anniversary of 86-DOS 1.00.