You can see if you're running the latest macOS version by clicking the Apple logo in the top-left corner, then selecting ...

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: ...

Development tool provider Metrowerks will be at next week’s Worldwide Developer Conference (WWDC) demonstrating the newest version of their development tool for Mac OS X: CodeWarrior for Mac OS, ...

Bit by bit, Mac OS X is gaining momentum. Apple’s new operating system still isn’t ready to take over full-time desktop duties from its predecessor, but there were encouraging signs at the Macworld ...

When Walter Sheluk installed/ran Tex-Edit Plus 4.0.2 under Mac OS 8.1, the following error message came up: "The application 'Tex-Edit 4.0.2' could not be opened ...

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 ...

OS X may be retired, but it deserves to be remembered. Take a trip back with these 14 key milestones in the double-decade history of the operating system that helped transform a nearly bankrupt Apple ...

Updating to the latest version of macOS, or running a beta version of macOS on your Mac, doesn’t have to be an all-or-nothing affair. It’s possible to install two different operating systems and ...

Apple Computer is putting the finishing touches on what could be the most important upgrade this year to its new operating system. But when the Cupertino, Calif.-based company will deliver Mac OS X ...

I'm trying to virtualize Mac OS Leopard and Snow Leopard, both server versions, within Snow Leopard Server and High Sierra. Using VirtualBox, I end up in the EFI shell. Does anyone know the boot ...