Compatibility
System 6 was officially supported by Apple for many different machines, some of which were shipped with System 6. It may be that some Apple computers for which System 6 was not officially supported may nevertheless be able to run it, perhaps with limitations.
| Macintosh Model | Model Date | 6.0.8 | 6.0.7 | 6.0.5 | 6.0.4 | 6.0.3 | 6.0.2 |
|---|---|---|---|---|---|---|---|
| 128K | 1984 | Yes | Yes | Yes | Yes | Yes | Yes |
| 512K | 1984 | Yes | Yes | Yes | Yes | Yes | Yes |
| 512Ke | 1986 | Yes | Yes | Yes | Yes | Yes | Yes |
| Macintosh XL | 1985 | No | No | No | No | No | No |
| Plus | 1986 | Yes | Yes | Yes | Yes | Yes | Yes |
| SE | 1987 | Yes | Yes | Yes | Yes | Yes | Yes |
| SE/30 | 1989 | Yes | Yes | Yes | Yes | Yes | Yes |
| Classic | 1990 | Yes | Yes | Yes | Yes | Yes | No |
| Classic II | 1991 | Yes: 6.0.8L | No | No | No | No | No |
| Portable | 1989 | Yes | Yes | Yes | Yes | Yes | Yes |
| II | 1987 | Yes | Yes | Yes | Yes | Yes | Yes |
| IIx | 1988 | Yes | Yes | Yes | Yes | Yes | Yes |
| IIcx | 1989 | Yes | Yes | Yes | Yes | Yes | Yes |
| IIci | 1989 | Yes | Yes | Yes | Yes | No | No |
| IIfx | 1990 | Yes | Yes | Yes | No | No | No |
| IIsi | 1990 | Yes | Yes | No | No | No | No |
| LC | 1990 | Yes | Yes | No | No | No | No |
| LC II | 1992 | Yes | No | No | No | No | No |
| Quadra 700 | 1991 | No | No | No | No | No | No |
| Quadra 900/950 | 1991/1992 | No | No | No | No | No | No |
| PowerBook 100 | 1991 | Yes: 6.0.8L | Partial: limited | Partial: limited | No | No | No |
| PowerBook 140 145/145B/170 |
1991/1992/1993 | No | No | No | No | No | No |
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