You can download old versions of macOS from the Mac App Store or as direct downloads from Apple's website. Create a bootable ...

Newbies to the Mac, especially those finding boxes of older Mac OS X discs in garage sales, flea markets and on eBay, may believe they can install the software on their Mac. Unless that software ...

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...

UTM is a cross-platform emulator that allows you to run macOS, Windows, or Linux. Here's how to use it to run very old versions of Apple's Mac operating system. But there's another great free OS ...

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 ...

On May 17th, Mac OS X 10.4.1, the first major update to Tiger. The release is available through Software Update, or as a standalone download [37 MB]. The new release includes the following ...

Apple’s new operating system, Mavericks has been available to download since the end of October 2013. It’s a free upgrade for all versions of Mac OS X going back to 2009 – that’s Snow Leopard and ...

Instructions on how to install Apple Computer Inc.’s Mac OS X operating system on any PC with a chip from Intel Corp. or Advanced Micro Devices Inc. were posted to the Internet this week, and they ...

Apple has spent the last decade building and improving Mac OS X, fusing the classic Mac OS and technology acquired from Steve Jobs’s Next into an impressive mainstream operating system that’s widely ...