• Microsoft had long planned that MS-DOS "4" would be a multitasking-capable operating system, but IBM had insisted on creating a new version of regular DOS for...
  • Specifically, while bootable and, so far as I've tested it, installable, the images in this set all contain an MS-DOS 3.3 boot sector.
  • MS-DOS 4.0 was a multitasking release of MS-DOS developed by Microsoft based on MS-DOS 2.0. Lack of interest from OEMs, particularly IBM...
  • Microsoft’s release of MS-DOS 4.0 to GitHub triggered some old memories of my first PC and the first computer my family ever owned.
  • MS-DOS 4.00 was released in October 1988. See the PC DOS 4.00 Feature Summary for more details.
  • This repo contains the original source-code and compiled binaries for MS-DOS v1.25 and MS-DOS v2.0, plus the source-code for MS-DOS v4.00 jointly developed...
  • Microsoft has released the source code for MS-DOS 4.0 and it's giving me all the nostalgia feels.
  • Ten years ago, Microsoft released the source for MS-DOS 1.25 and 2.0 to the Computer History Museum, and then later republished them for reference purposes.
  • MS-DOS 4.00 is quite an interesting version of this command-line-driven OS, as it was written in partnership with IBM and formed a branch of DOS called...
  • MS-DOS 4 is a a version of MS-DOS released in 1988. This is the only version of DOS to be developed primarily by IBM prior to the collapse of the Microsoft–IBM collaboration.