DOS

, with an example of its directory structure , showing version information and an example of its directory structure 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. Although the name has come to be identified specifically with MS-DOS and compatible operating systems, DOS is a platform-independent acronym for disk operating system, whose use predates the IBM PC. Dozens of other operating systems also use the acronym, beginning with the mainframe DOS/360 from 1966. Others include Apple DOS, Apple ProDOS, Atari DOS, Commodore DOS, TRSDOS, and AmigaDOS.

Dos or DOS may refer to: ==Computing== Disk operating system List of disk operating systems called DOS DOS, common shorthand for MS-DOS and compatible operating systems Data over signalling (DoS), multiplexing data onto a signalling channel Denial-of-service attack (DoS attack), a cyberattack ==Music== dos (band), an American rock duo Dos (Dos album), 1986 Dos (Altered State album), 1993 Dos (Fanny Lú album), 2008 Dos, a 1992 album by Gerardo ¡Dos!, a 2012 album by Green Day Dos (Malo album), 1972 Dos (Myriam Hernández album), 1990 Dos, a 2009b album by Wooden Shjips DOS (concert), by Daniel Padilla, 2014 ==Organisations== Democratic Opposition of Serbia, a former political alliance Department of Space, an Indian government department Directorate of Overseas Surveys, now Ordnance Survey International, in the UK Dominus Obsequious Sororium, a cult of NXIVM formed by Keith Raniere United States Department of State ==Science and technology== Density of states, in condensed matter physics DOS, a series of Russian space stations in the Salyut programme Dioctyl sebacate, an organic chemical Diversity oriented synthesis, in chemistry ==Sports== DOS Kampen, a Dutch football club VV DOS, a past Dutch football club now part of FC Utrecht ==Other uses== Dos (card game), a variation of Uno Dos, an Ancient Roman dowry Dos, a village in Vidra Commune, Romania Day of Silence, an LGBT observance ==See also== American Descendants of Slavery (ADOS) Doss (disambiguation) Do (disambiguation), for the singular of dos Uno, dos, tres (disambiguation)

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