MS-DOS

An example of the MS-DOS command-line interface, showing that the current directory is the root of drive C
Developer	Microsoft
Written in	x86 assembly, later versions also used C
OS family	DOS
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; 42 years ago (1981-08-12)
Final release	8.0 / September 16, 2000; 23 years ago (2000-09-16)
Repository	{{URL|example.com|optional display text}}
Update method	Re-installation
Package manager	None
Platforms	x86
Kernel type	Monolithic
Default user interface	Command-line, text
License	Proprietary MIT License (v1.25 & v2.0)
Succeeded by	Windows NT (as of Windows XP)
Official website	MS-DOS overview
Support status
MS-DOS 6.0 unsupported as of December 31, 2001

Starting MS-DOS

MS-DOS is a discontinued 16-bit computer operating system by Microsoft Corporation. It stands for "Microsoft Disk Operating System". The operating system implements a command-line interface for the user to input commands (which ran from disk). It was popularly used in PCs before GUI operating systems, such as Microsoft Windows, came out, and still is used in some places today.