Mac System Software 1.x

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Mac System Software 1.x
Version of Mac System Software
Mss10085desktop.png
Version1.x
Codename
Preliminary name
Architecture68k
Latest build
Release date1984-01-24
Support end1985-04-01
Replaced by
Mac System Software 2.x
Macintosh 128K Twiggy

Mac System Software 1.0 was released on 1984-01-24 for the Macintosh now called the Macintosh 128K or Mac128K. 4 builds of 1.0 have been leaked ranging from a different GUI called "Flounder", to the Finder. Apple released 1.1 with faster Disk Copy speeds and new Special menu commands. It was released on 1984-12-29.

Builds[edit]

Pre-release[edit]

RTM[edit]