History painstakingly preserved.

This is a rare look at the tech giant's first operating system ...

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

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

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

Do you still long to run WordPerfect 5.1, Lotus 1-2-3 4, or Doom on DOS? Well, if you do, there's a new way to revisit the PC world of the 1980s: The newly open-sourced PC-MOS/386 v501. PC-MOS, for ...

Microsoft arguably built its business on MS-DOS, and on Tuesday the software giant and the Mountain View, CA-based Computer History Museum took the unprecedented step of publishing the source code for ...

Reader Steve P. sends in this question: “I’m running Windows 2000 and want to upgrade my system BIOS. The instructions say to create a bootable disk with the format a:/s command. However, the /s doesn ...

I recently said that an MS-DOS boot disk couldn’t be created in Windows 2000. As several readers pointed out, this isn’t quite true. An MS-DOS boot disk can be created using files located on the ...

In context: Back in 1980, Tim Paterson was creating a new operating system he called QDOS or Quick and Dirty Operating System. The system was later renamed 86-DOS, as it was being designed to run on ...

Clifford led How To coverage. He spent a handful of years at Peachpit Press, editing books on everything from the first iPhone to Python. He also worked at a handful of now-dead computer magazines, ...

<I>/EDIT: Sorry all for three new topics, I posted in less than 30 mins, but I am on dial-up, and I usually write posts and mails, when not connected, and then when I on-line (for an hour or so), I ...