| Year |
Event |
| 1981 |
MS-DOS 1.0 was released August, 1981. |
| 1982 |
MS-DOS 1.25 was released August,
1982. |
| 1983 |
MS-DOS 2.0 was released March, 1983. |
| 1984 |
Microsoft
introduces MS-DOS 3.0 for the IBM PC AT
and MS-DOS 3.1 for networks. |
| 1986 |
MS-DOS 3.2 was released April, 1986. |
| 1987 |
MS-DOS 3.3 was released April, 1987. |
| 1988 |
MS-DOS 4.0 was released July, 1988. |
| 1988 |
MS-DOS 4.01 was released November, 1988. |
| 1991 |
MS-DOS 5.0 was released June, 1991. |
| 1993 |
MS-DOS 6.0 was released August, 1993. |
| 1993 |
MS-DOS 6.2 was released November, 1993 |
| 1994 |
MS-DOS 6.21 was released March, 1994 |
| 1994 |
MS-DOS 6.22 was released April, 1994 |
