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System 7 (later named Mac OS 7) is the seventh major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. It was launched on May 13, 1991, to succeed System 6 with virtual memory , personal file sharing , QuickTime , TrueType fonts, the Force Quit dialog, and an improved user interface.
The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...
OS X Lion, [5] [6] also known as Mac OS X Lion, [2] (version 10.7) is the eighth major release of macOS, Apple's desktop and server operating system for Mac computers. A preview of OS X 10.7 Lion was publicly shown at the "Back to the Mac" Apple Special Event on October 20, 2010.
System 7: 1991 System 7.5.1 was the first to refer to itself as Mac OS; Mac OS 7.6 was the first to be branded as "Mac OS" Mac OS 8: 1997 Macintosh computers Mac OS 9: 1999 Mac OS X/OS X/macOS: Mac OS X Public Beta: September 13, 2000 May 14, 2001 Code name Kodiak; Mac OS X 10.0: September 13, 2000 March 24, 2001 Code name Cheetah; Mac OS X 10.1
General Motors Operating System made for IBM 701 [2] MIT's Tape Director operating system made for UNIVAC 1103 [3] [4] 1956 GM-NAA I/O for IBM 704, based on General Motors Operating System; 1957 Atlas Supervisor (Manchester University) (Atlas computer project start) BESYS , for IBM 704, later IBM 7090 and IBM 7094; 1958
A Macintosh clone is a computer running the Mac OS operating system that was not produced by Apple Inc. The earliest Mac clones were based on emulators and reverse-engineered Macintosh ROMs. During Apple's short lived Mac OS 7 licensing program, authorized Mac clone makers were able to either purchase 100% compatible motherboards or build their ...
A/UX is a Unix-based operating system from Apple Computer for Macintosh computers, integrated with System 7's graphical interface and application compatibility. It is Apple's first official Unix-based operating system, launched in 1988 and discontinued in 1995 with version 3.1.1. [2]
Support for Macintosh clones was first exhibited in System 7.5.1, which was the first version to include the "Mac OS" logo (a variation on the original Happy Mac startup icon), and Mac OS 7.6 was the first to be named "Mac OS" instead of "System". These changes were made to disassociate the operating system from Apple's own Macintosh models.