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, ...

Mac OS X 10.4.3 includes a fairly significant update to Apple's Disk Utility (located in Applications/Utilities). First, the new release can verify your computer's ...

The Basilisk II emulator can be used to run old versions of Mac OS 8 and System 7 on a modern Mac. Here's how to get started using it. Before macOS and OS X, there was Mac OS 9, and before that were ...

UTM is an emulator for virtualizing other operating systems. Here's how to use it to run Apple's Mac OS 9 on a Mac running on Apple Silicon. UTM is an OS emulator that lets you virtualize and run a ...

Defragmentation and disk optimization in Mac OS X collectively represent an issue nearly as contentious as the debate over repairing disk permissions -- one camp argues that utilties purportedly ...