Eric Benfer (Systems Administrator at Johns Hopkins Applied Physics Lab) writes of an unexpected problem involving two different versions of the Mac OS 9.1 Software Install CD that shipped with Power ...

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: ...

OK, the Lion version of MacOS is out and the Internet buzz about it has peaked my interest. I just read this on Wiki: Since 2002, Mac OS X has been included with all new Macintosh computer systems. It ...

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 ...

Apple has just released a variety of new software updates older versions of iOS, macOS, watchOS, and iPadOS. Details here.

What's the preferred (correct) way to get the Mac OS version in the Terminal?<BR><BR>"uname -r" ?<BR><BR>hostinfo and grep for kernel version?<BR><BR>Both of above give "5.5" for OS 10.1.5 (5S66). Is ...

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 ...