DOS 3

DOS 3 or DOS-3 may refer to:

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 in 1985
MS-DOS 3.2 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 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 3.4, announced OEM version and successor of MS-DOS 3.3 with FAT16B supoort in 1988

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

It may also refer to versions of the Digital Research DR DOS family:

DR DOS 3.31, based on DOS Plus 2.1 and Concurrent PC DOS 6.0 with FAT16B support in 1988
DR DOS 3.32, successor of DR DOS 3.31 in 1988, reporting itself as "PC DOS 3.31"
DR DOS 3.33, successor of DR DOS 3.32 in 1988, reporting itself as "PC DOS 3.31"
DR DOS 3.34, successor of DR DOS 3.33 in 1988, reporting itself as "PC DOS 3.31"
DR DOS 3.35, successor of DR DOS 3.34 in 1988, reporting itself as "PC DOS 3.31"
DR DOS 3.40, successor of DR DOS 3.35, reporting itself as "PC DOS 3.31"
DR DOS 3.41, 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