In 1970s, large scale integration made personal computers a reality. The computers run operating systems that are anything from simple bootstrap loader with a BASIC or FORTH interpreter glued on to a full fledged operating system with support for executing multiple programs for multiple users on multiple computers connected by a network.
| Hardware | Year | Software |
|---|---|---|
| 1976 | Control Program/Memory (CP/M) - an operating system developed by Gary Kildall at Intergalactic Digital Research, later renamed to just Digital Research :-). | |
| IBM PC - a computer developed by IBM. | 1981 | MS-DOS - an operating system developed at Microsoft. |
| ZX Spectrum - a computer developed by Richard Altwasser at Sinclair Research. | 1982 | |
| 1984 | Finder - an operating system developed by Steve Capps at Apple. |