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 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 ...
Tom's Hardware on MSN

45 years later, earliest DOS source code transcribed from a stack of old printouts found in garage

Microsoft VP confirms transcribed document “is perfect and recompiles byte for byte to the original binaries.” ...

Microsoft makes 86-DOS 1.00 open source on its 45th birthday

History painstakingly preserved.
Hackaday

Transcribing The Source Of The First DOS For The IBM PC

Doing software archaeology can be a harrowing task, as rarely do you find complete snapshots of particular versions of ...
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.

Microsoft releases earliest known DOS source code

DOS, Microsoft is releasing the earliest known source code listings – transcribed from yellowed continuous printouts.