The first Mac software was called System 1 and it was released on January 24, 1984, and there have been 30 major updates since. Apple rebranded to Mac OS with the release of mac OS 8 on July 26, 1997.
Today marks the 25th anniversary of Apple launching Mac OS X, the operating system that serves as the foundation of ...
Tom's Hardware on MSN
Apple’s Mac OS X turns 25, has prospered across three hardware architecture changes
It replaced the polished but limited Mac OS9 with a UNIX-underpinned reimagining of computer operating systems.
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