OS X changed the game for Apple. Image: Killian Bell/Cult of Mac OS X, the most important piece of software in Apple history, turns 20 today. Going on sale in its full, public version on March 24, ...
It replaced the polished but limited Mac OS9 with a UNIX-underpinned reimagining of computer operating systems.
In 2001, Apple finally delivered a next-gen operating system and unleashed its newfound fondness for gloss ...