Before there was Steam, there was MS-DOS. A chunky, no-nonsense platform that ran some of the most unforgettable games of all time — games that shaped not just genres, but the entire medium. This was ...

Microsoft has open-sourced another bit of computing history this week: The company teamed up with IBM to release the source code of 1988’s MS-DOS 4.00, a version better known for its unpopularity, ...

Every once in awhile Ars publishes DOS articles, which gets me thinking about DOS again, and I thought, perhaps there would be value in DOS perpetual thread on the Forums, for non-article-specific DOS ...

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 ...