DOS 2

DOS 2 or DOS-2 may refer to:

• A failed Soviet space station DOS-2, part of the Salyut programme

It may also refer to versions of the Microsoft MS-DOS family:

• MS-DOS 2.00, Microsoft (internal) version in 1982 and 1983, successor of MS-DOS 1.xx, licensed to various OEMs including IBM
• MS-DOS 2.01, Microsoft (internal) version in 1983
• MS-DOS 2.10, Microsoft (internal) version in 1983
• MS-DOS 2.11, Microsoft (internal) version in 1983
  • MS-DOS 2.11R, a ROMed version for Tandy PCs in 1988
• MS-DOS 2.12, a special OEM version for the TI Professional in 1983/1984
• MS-DOS 2.25, Microsoft version with extended multilanguage support in 1985
• MS-DOS 2.50, Microsoft internal version in 1983

It may also refer to versions of the IBM PC DOS family:

• PC DOS 2.0, successor of PC DOS 1.1 in 1983
• PC DOS 2.1, successor of PC DOS 2.0 in 1983
• PC DOS 2.11, successor of PC DOS 2.1 in 1984

It may also refer to operating systems of the Digital Research family:

• DOS Plus 1.2, a single-user variant of Concurrent PC DOS 4.1 in 1986
• DOS Plus 2.1, a single-user variant of Concurrent PC DOS 5.0 in 1988

See also

• DOS (disambiguation)
• DOS 1 (disambiguation)
• DOS 3 (disambiguation)
• DOS 20 (disambiguation)
• DOS 286 (disambiguation)