Dates In History
1975 [Detail]
| 1975 | CP/M operating system finished |
| 1975 | Paul Allen and Bill Gates launch Altair BASIC |
| 3rd March | First meeting of the Homebrew Club |
| July 1975 | Bill Gates and Paul Allen sign a licensing agreement with MITS |
| August 1975 | Cray 1A announced |
| 15th September | Microsoft Founded |
