Macintosh Operating System definition operating system
(Mac OS) Apple Computer, Inc.
's proprietary operating system
for their Macintosh
family of personal computers
The part of the operating system that simulates the desktop is called "Finder
." The multitasking
version of Finder was called "MultiFinder" until multitasking
was integrated into the core of the OS with the introduction of System 7.0 in 1990.
The Macintosh series provides a built-in graphics language, called "QuickDraw
", which provides a standard
for software developers.
Mac OS 8, scheduled for delivery in July 1997, included new human-interface features, increased system stability and performance, a PowerPC
processor-native Finder, tighter integration of Internet
access through panel-based "assistants," Personal Web Sharing and the ability to run Java applets and programs through Mac OS Run Time for Java
. Version 9.2 was the last version of the bespoke Mac OS. The next version, Mac OS X
is quite different, being based on Unix
See also Macintosh file system
, Macintosh user interface