Macintosh Operating System

Also found in: Acronyms.

Macintosh Operating System

(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.
This article is provided by FOLDOC - Free Online Dictionary of Computing (
References in periodicals archive ?
Also for teachers who use a Macintosh operating system, Power On Software has developed a Mac-compatible version of its contact management and scheduling product, Now Up-to-Date & Contact.
A strong argument can be made, for instance, that the Macintosh operating system did not fail to become the dominant standard because of its intrinsic technical drawbacks, as Liebowitz and Margolis claim in a surprisingly casual treatment.
Sony, on the other hand, kept Betamax all to itself, and Apple refused for years to license its Macintosh operating system.
Another reason I think Apple is going to be around for a while is its decision about a year ago to license the Macintosh operating system (OS) to other manufacturers.
In the Macintosh Operating System (and Windows, too - Microsoft's fruit-of-the-IBM didn't fall far from Apple's tree), we organize ourselves using traditional office picture-words such as "file folder" and "trashcan."
However, the most interesting developments in adaptive software and peripherals were initially designed for the Macintosh, because multimedia features, such as synthesized speech, integration of graphics and animation, and ability to change text size, were built into the Macintosh operating system. Now, however, many Macintosh-based software and hardware developers are moving their products to Windows, as well.
Most of the people who have used both feel the Macintosh operating system is superior to the DOS-with-Windows alternative.
Novell and AT&T have upgraded TSAPI to support NetWare 4.1 directory services and additional client platforms, including OS/2, UnixWare and the Macintosh operating system. TSAPI 2.0 is expected to ship in April.
This is a capability that should have been built into the basic Macintosh operating system. But until it is.
The long-awaited, much talked-about System 7 upgrade to the Macintosh operating system began shipping in mid-May, according to Apple Computer Inc., which called the system software its "greatest strength" and the new version its "most significant enhancement of Macintosh" since its 1984 introduction.
Hardware: PC running the Mountain Lion Macintosh operating system.
Part of a series designed to provide concise information and hidden tricks not found in official documentation and manuals, this volume on migrating to the Apple Macintosh operating system provides practical advice for Windows users new to the user environment.