MS-DOS MS-DOS (short for Microsoft Disk Operating System) is an operating system built for x86 based personal computers. It was the most popular of the DOS family of operating systems being the main operating system for IBM PC compatible personal computers. While it reined supreme during the 1980’s through to the mid-1990s, it was slowly replaced by operating systems that offered a graphical user interface (GUI) especially so by the Microsoft Windows. Due to MS-DOS, and DOS in general being around for a long period almost all programs written for it will not run on a modern operating system, requiring software like DOSBox to emulate its architecture to allow old software and games to be run on modern systems. Advertisement If you like this, you may also like… GBA Homebrew RomsBalanced DietN64 Texture PacksDjipi’s Cell Shade V1 Majoras Mask Texture PackPS2 EmulatorsPlay!N64 Texture PacksMollymutt’s Super Mario 64 RetextureNDS EmulatorsDeSmuMEN64 PluginsGlide64 (Glide HQ)