System Software 6
System Software 6 (also referred to simply as System 6) was a consolidation release of the Mac OS, producing a complete, stable, and long-lasting operating system. Two major hardware introductions requiring additional support under System 6 were the 68030 processor and 1.44 MB SuperDrive debuting with the Macintosh IIx and Macintosh SE/30. Later, it would include support for the first specialized laptop features with the introduction of the Macintosh Portable. From System 6 forward, the Finder would have a unified version number closely matching that of the System, alleviating much of the confusion caused by the often considerable differences between earlier Systems.
| System Version | Release Date | Finder Version | MultiFinder Version | LaserWriter Version | Release Information |
|---|---|---|---|---|---|
| 6.0 | April, 1988 | 6.1 | 6.0 | 5.2 | Initial Release |
| 6.0.1 | September 19, 1988 | 6.1.1 | 6.0.1 | 5.2 | Release for Macintosh IIx (1988) |
| 6.0.2 | Late 1988 | 6.1 | 6.0.1 | 5.2 | Maintenance Release |
| 6.0.3 | March 7, 1989 | 6.1 | 6.0.3 | 5.2 | Release for Macintosh IIcx (1989) |
| 6.0.4 | September 20, 1989 | 6.1.4 | 6.0.4 | 5.2 | Release for Macintosh Portable and IIci (1989) |
| 6.0.5 | March 19, 1990 | 6.1.5 | 6.0.5 | 5.2 | Release for Macintosh IIfx (1990) |
| 6.0.6 | October 15, 1990 | 6.1.6 | 6.0.6 | 5.2 | Not released because of AppleTalk bug |
| 6.0.7 | October 16, 1990 | 6.1.7 | 6.0.7 | 5.2 | Official release for Macintosh LC, IIsi and Classic (1990) |
| 6.0.8 | April, 1991 | 6.1.8 | 6.0.8 | 7.0 | Updated printing software to match software of System 7.0 |
| 6.0.8L | Late 1991/Early 1992 | 6.1.8 | 6.0.8 | 7.0 | Limited maintenance release for Pacific customers |
Read more about this topic: History Of Mac OS
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