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 ...

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

History painstakingly preserved.
Ars Technica

Microsoft surprises MS-DOS fans with remake of ancient text editor that works on Linux

Last month, Microsoft released a modern remake of its classic MS-DOS Editor, bringing back a piece of computing history that first appeared in MS-DOS 5.0 back in 1991. The new open source tool, built ...