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MS-DOS (short for Microsoft Disk Operating System) is a text-based operating system released by Microsoft in 1981. It uses text commands and keyboard shortcuts, inputted via keyboard, in a computer terminal-like setting, to perform user-defined actions. It can interface with other hardware, such as a mouse, but only if installed programs support it.
Starting with Windows 1.0, it was an overlay that gave MS-DOS a graphical user interface, but MS-DOS wasn't fully replaced (as it was merged with the DOS-based Windows products as part of the Windows 9x line, which consists of Windows 95, Windows 98, and Windows Me) until the Windows NT line of Windows products (which were designed to operate independently without DOS support and was originally intended to co-exist with the DOS-based versions), starting with the release of Windows XP in 2001, although it retained Windows Command Prompt as a legacy feature, and the Recovery Console in Windows 2000, Windows XP, and Windows Server 2003 provided a text mode command line interface that can be started from the installation CD or be installed to the hard drive although it is intended for diagnostics and to fix a Windows installation that won't boot.
The only Mario games specifically developed for MS-DOS are the releases of these edutainment games:
Also available are ports of classic Mario arcade games: