AT&T Personal Computer 6300 DOS Release 2.0 (MS-DOS 2.11)
1984
AT&T
MS-DOS (Version 3.30A)
1987
Microsoft
MS-DOS (Version 4.00)
1988
Microsoft
MS-DOS (Version 5.00)
1991
Microsoft
Multitasking MS-DOS (Version 4.00)
1985
Microsoft
IBM Personal Computer DOS (Version 2.00)
1983
IBM
IBM Personal Computer DOS (Version 2.10)
1983
IBM
IBM Personal Computer DOS (Version 3.00)
1984
IBM
IBM Personal Computer DOS (Version 3.10)
1985
IBM
IBM Personal Computer DOS (Version 3.20)
1986
IBM
IBM Personal Computer DOS (Version 3.30)
1987
IBM
Microsoft Windows Version 1.0
1985
Microsoft
SCO XENIX System V release 2.1.3 for i8086
1986
SCO