DOS 3 or DOS-3 may refer to: * Kosmos 557 aka Salyut-3 or DOS-3, a Russian space station *

Apple DOS Apple DOS is the family of disk operating systems for the Apple II series of microcomputers from late 1978 through early 1983. It was superseded by ProDOS in 1983. Apple DOS has three major releases: DOS 3.1, DOS 3.2, and DOS 3.3; each one of t ...

for the Apple II series, released in versions 3.1, 3.2, and 3.3 * Atari DOS 3 for the Atari 8-bit family It may also refer to versions of the Microsoft MS-DOS family: * MS-DOS 3.0, with FAT16 support in 1984 *

MS-DOS 3.1 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

in 1985 *

MS-DOS 3.2 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few ...

in 1985 * MS-DOS 3.21 in 1987 ** MS-DOS 3.21R, a ROMed version of MS-DOS in 1989 for laptops * MS-DOS 3.22, a ROMed OEM version of MS-DOS for HP 95LX in 1991 * MS-DOS 3.25 *

MS-DOS 3.3 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

in 1987 * MS-DOS 3.3A ** Arabic MS-DOS 3.3, a special Arabic version of MS-DOS 3.3 (ADOS) in 1988 ** Hebrew MS-DOS 3.3, a special Hebrew version of MS-DOS 3.3 (HDOS) ** MS-DOS 3.3R, a ROMed version of MS-DOS in 1990 for TI laptops * MS-DOS 3.31, an OEM version of MS-DOS with FAT16B support by Compaq * MS-DOS 3.30+, an OEM version of MS-DOS with FAT16B support by Zenith-Data System * MS-DOS 3.40, announced OEM version and successor of MS-DOS 3.3 with FAT16B support in 1988 It may also refer to versions of the IBM PC DOS family: * PC DOS 3.0, successor of PC DOS 2.11 with FAT16 support in 1984 * PC DOS 3.1, successor of PC DOS 3.0 in 1984/1985 * PC DOS 3.2, successor of PC DOS 3.1 in 1986 *

PC DOS 3.21 IBM PC DOS, an acronym for IBM Personal Computer Disk Operating System, is a discontinued disk operating system for IBM PC compatibles. It was manufactured and sold by IBM from the early 1980s into the 2000s. Developed by Microsoft, it was also s ...

, successor of PC DOS 3.2 in 1986 *

IBM DOS 3.3 IBM PC DOS, an acronym for IBM Personal Computer Disk Operating System, is a discontinued disk operating system for IBM PC compatibles. It was manufactured and sold by IBM from the early 1980s into the 2000s. Developed by Microsoft, it was a ...

, successor of PC DOS 3.21 in 1987 * IBM DOS 3.4, announced successor of IBM DOS 3.3 in 1988 It may also refer to versions of the Digital Research DR DOS family: *

DR DOS 3.31 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, based on DOS Plus 2.1 and Concurrent PC DOS 6.0 with FAT16B support in 1988 *

DR DOS 3.32 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, successor of DR DOS 3.31 in 1988, reporting itself as "PC DOS 3.31" *

DR DOS 3.33 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, successor of DR DOS 3.32 in 1988, reporting itself as "PC DOS 3.31" *

DR DOS 3.34 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS- ...

, successor of DR DOS 3.33 in 1988, reporting itself as "PC DOS 3.31" *

DR DOS 3.35 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, successor of DR DOS 3.34 in 1988, reporting itself as "PC DOS 3.31" *

DR DOS 3.40 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, successor of DR DOS 3.35, reporting itself as "PC DOS 3.31" *

DR DOS 3.41 DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-D ...

, successor of DR DOS 3.40 in 1989, reporting itself as "PC DOS 3.31" * DR DOS 5.0, successor of DR DOS 3.41 in 1990, reporting itself as "PC DOS 3.31" * DR DOS 6.0, successor of DR DOS 5.0 in 1991, reporting itself as "PC DOS 3.31" * NetWare PalmDOS 1.0, a successor to DR DOS 6.0 tailored for early palmtop PCs in 1992, reporting itself as "PC DOS 3.31"

See also