DR DOS 6.0
1991
Digital Research
MS-DOS (Version 5.00)
1991
Microsoft
MS-DOS (Version 6.00)
1992
Microsoft
MS-DOS (Version 6.22)
1994
Microsoft
Novell DR Multiuser DOS Release 5.1
1992
Novell
Novell DOS 7
1994
Novell
PC DOS (Version 6.3)
1993
IBM
IBM PC DOS 2000
1998
IBM
Microsoft Windows Version 3.0
1990
Microsoft
Windows Version 3.1
1992
Microsoft