System 6
| Version of the classic Mac OS operating system | |
System 6.0.8 | |
| Developer | Apple Computer |
|---|---|
| OS family | Macintosh |
| Source model | Closed source |
| Released to manufacturing | April 1988 |
| Latest release | 6.0.8 / May 1991 |
| Kernel type | Monolithic |
| License | Proprietary |
| Preceded by | System 5 |
| Succeeded by | System 7 |
| Support status | |
| Historical, unsupported | |
| Part of a series on |
| Classic Mac OS |
|---|
System 6 (or System Software 6) is the sixth major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. It was released in 1988. It is a monolithic operating system, with cooperative multitasking based on an improved MultiFinder. The boxed version cost US$49 (equivalent to about $130 in 2024), and it was included with all new Macintosh computers until 1991, when it was succeeded by System 7.