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

The source code for 86-DOS 1.00, the OS that eventually became MS-DOS and Windows, is now available on GitHub.
Houston Chronicle

How to Get to the Root Directory in DOS

Microsoft DOS and the command prompt application included with Windows start at a subdirectory, such as the Windows folder or your user directory's folder, when you open them. You can change to the ...
Cult of Mac

Today in Apple history: Apple ships its first OS

July 20, 1978: Apple DOS makes its debut on the Apple II, giving Apple its first official operating system. A command line interface with green text prompts on a black background, Apple DOS looks ...
Ars Technica

Though “barely an operating system,” DOS still matters (to some people)

Earlier this month, I spent a day working in the throwback world of DOS. More specifically, it was FreeDOS version 1.1, the open source version of the long-defunct Microsoft MS-DOS operating system.
PC World

DOS games on Steam Deck: Here’s the best way to do it

Why did I suddenly want to play the original Duke Nukem on my Steam Deck? I can’t recall the exact reason, but I do know that after a hefty dose of Googling and a thorough amount of trial and error, ...