| Year | Month | Day | Event |
|---|---|---|---|
| 1977 | Oct | 25 | OpenVMS 1.0 Released |
| 1983 | Nov | 10 | Bill Gates Introduces Windows 1.0 |
| 1985 | Nov | 20 | Microsoft Windows 1.0 Is Released |
| 1991 | Aug | 25 | Linus Torvalds Announces Linux's Predecessor |
| 1991 | Sep | 17 | Linux Kernel First Released To Internet |
| 1994 | Mar | 14 | The Early History Of Linux |