| Type | Unix, Research Unix, operating system |
|---|---|
| Developer | Bell Labs |
| First release | 1975 |
| Latest version | 6 |
| License | 4-clause BSD License, proprietary license |
| Successor | Version 7 Unix |
| Introduced | 1975 |
Sources: Wikidata (CC0) · Wikidata Q3547270
Operating systems · 3
| Operating system | Developer | First release | License |
|---|---|---|---|
| MNOS | — | — | — |
| PWB/UNIX | Bell Labs | 1977 | — |
| Xv6 | Massachusetts Institute of Technology | — | MIT License |
Operating systems · 1
| Operating system | Developer | First release | License |
|---|---|---|---|
| Version 7 Unix | — | — | 4-clause BSD License |