Several readers responded to our item yesterday on installing an English language version of the Mac OS on new iBooks with international version of the Mac OS pre-installed. Here are the highlights: ...

Apple’s macOS operating system has changed a lot over the last 25 years, with new features and designs coming and going as the decades have passed. Even the name has been adjusted, starting out as Mac ...

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 ...

It replaced the polished but limited Mac OS9 with a UNIX-underpinned reimagining of computer operating systems.

macOS Monterey version 12 is a stable, lightweight upgrade that works great on older Macs, and you can use the direct DMG or ISO links to download, install, upgrade, or downgrade your system easily.