System 1

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==
thumb|270px|right|Feature demonstration
*System 0.85 (pre-release)
*System 1.0
*System 1.1
==References==
*Macworld Mac SECRETS by David Pogue, 5th Edition p.294-295. 1999.
==External links==
*Apple Macintosh before System 7
*The Early Mac OS: System 1 - 2 at the Apple Museum
*System 1 at the Graphical User Interface Gallery
*Mac System Software 1.x at BetaWiki
* at Wikipedia
Category:1984 introductions
Category:Discontinued Apple software