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System 2 (System Software 0.3 and 0.5) introduced the second major upgrade to the Macintosh system software. Version 2.0 was released in April 1985 and includes the System 2.0 update, followed shortly after by System 2.1 which provided HD20 HFS support.

Versions of System 2[]

S20desk

System 2.0 desktop



References[]

External links[]

System 2
System 2.0 | System 2.1
← System 1 | System 2 | System 3 →
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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