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DOS

Group of closely-related IBM PC-compatible operating systems

EntityQ170434

Also known as Disk Operating System · PC-compatible DOS

Subclass of: disk operating system
Founded: 1981

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

DOS is a family of disk-based operating systems for IBM PC compatible computers. It primarily consists of IBM PC DOS and a rebranded version, Microsoft's MS-DOS, both of which were introduced in 1981. Later, compatible systems from other manufacturers are DR-DOS (1988), ROM-DOS (1989), PTS-DOS (1993), and FreeDOS (1994). MS-DOS dominated the IBM PC compatible market between 1981 and 1995.

Overview

All data

18 statements · 11% with external sources · numbers in brackets are citations

Different from: DOS

On other databases

14 identifiers linking DOS across the web's reference databases

Data quality

statements

11%

externally sourced

Source last edited October 10, 2026. AIDB refreshes this page daily.

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AIDB. (2026). DOS (Q170434). Retrieved from https://aidb.si/e/dos-Q170434