FreeDOS is an open-source recreation of MS-DOS, capable of running new and old DOS games and applications on real PCs or emulators. Today, the project is turning 30 years old. The FreeDOS project ...

Except it didn’t. MS-DOS took over the word and led — eventually — to the huge number of Windows computers we know today. Microsoft has released the source code to MS-DOS 1.25 and 2.0 on GitHub.

The first step is getting DOS 6.22 ... built for MS-DOS by [SuperIlu]. There are pre-compiled packages available on its GitHub page for easy installation in DOS but the source code is available ...