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System 1

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System 1 on a Mac

System 1 is the very first version of the Macintosh system software, released for the Macintosh 128K and Macintosh 512K. It is also a generalised term for "any version of System 1", or "System 1.x".

Versions of System 1

System 1

System 0.85 | System 0.97/1.0 | System 1.1

System 1 | System 2 →

Macintosh system software
Macintosh System: System 1 | System 2 | System 3 | System 4 | System 5 | System 6 | System 7
Mac OS: Mac OS 8 | Mac OS 9 | Mac OS X

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