| Type | operating system |
|---|---|
| Developer | Apple Inc. |
| Latest version | 2.1 |
| Predecessor | System 1 |
| Successor | System 3 |
Sources: Wikidata (CC0) · Wikidata Q9350444
Operating systems · 1
| Operating system | Developer | First release | License |
|---|---|---|---|
| System 1 | Apple Inc. | 1984 | proprietary license |
Operating systems · 1
| Operating system | Developer | First release | License |
|---|---|---|---|
| System 3 | Apple Inc. | — | — |