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An example of the MS-DOS command-line interface, showing that the current directory is the root of drive C
|Company / developer||Microsoft|
|Programmed in||x86 assembly, later versions also used C|
|Working state||Preserved pieces exist in 32-bit Windows|
|Source model||Closed source; open source for select versions since 2018|
|Initial release||August 12, 1981|
|Discontinued||8.0 / September 16, 2000|
|Default user interface||Command-line, text|
MIT License (v1.25 & v2.0)
|Succeeded by||Windows NT (as of Windows XP)|
|Official website||MS-DOS overview|
MS-DOS is a computer operating system by Microsoft Corporation. It stands for "Microsoft Disk Operating System", and came from an operating system Microsoft bought called 86-DOS, originally called QDOS, or "Quick and Dirty Operating System." The operating system used a command-line interface for the user to input commands. It was popularly used in PCs before a GUI operating system called Microsoft Windows came out, and still is used in some places today.
MS-DOS is a text-based operating system, meaning that a user works with a keyboard to input data and receives output in plain text. Later, MS-DOS often had programs using a mouse and graphics to make work more simple and quick. (Some people still believe that working without graphics is really more efficient.) It is called a disk operating system because it was originally made to be loaded into a computer's memory with a floppy disk each time the computer is started (booted) up.
MS-DOS was released as proprietary software, but decades later after most users had gone to other systems, it was released as free software.
- "An Inside Look at MS-DOS". Seattle Computer Products. Seattle. June 1983. http://www.patersontech.com/dos/byte%E2%80%93inside-look.aspx.
- Turner, Rich. "Re-Open-Sourcing MS-DOS 1.25 and 2.0". https://blogs.msdn.microsoft.com/commandline/2018/09/28/re-open-sourcing-ms-dos-1-25-and-2-0/. Retrieved 29 September 2018.
- "MS-DOS: A Brief Introduction". The Linux Information Project. http://www.linfo.org/ms-dos.html.