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System 1 (Macintosh System Software) is the very first version of the Macintosh system software, released with the original Macintosh 128K and Macintosh 512K computers.

The Macintosh System Software borrowed from the user interface developed for the Apple Lisa computer line, based on user interface rules learned from the Xerox PARC team.

System 1 is also a generalised term for any version of "System 1.x". This is not to be confused with "System Software 1", which was a software bundle that included System 3.1 and Finder 5.2.

Versions of System 1[]

Mac_System_1

Mac System 1

Feature demonstration

References[]

External links[]

System 1
System 0.85 | System 0.97/1.0 | System 1.1
System 1 | System 2 →
Mac OS   Classic Mac OS versions
Macintosh System Software : System 1 · System 2 · System 3 · System 4 · System 5 · System 6 · System 7
Mac OS : Mac OS 7.6 · Mac OS 8 · Mac OS 9 · Classic environment
Cancelled : Copland · Gershwin
Deprecated in in May 2002 and succeeded by Mac OS X
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