The current Mac operating system—which launched in 2001, 23 years ago, as Mac OS X—has been around longer than the "Classic" OS, which Apple offered for a total of 16 years. Come to think of ...

The operating system is Unix-based. Mac OS X was launched more than two decades ... of macOS you are running by clicking on the Apple logo in the top left and choosing About This Mac.

The “Mac” in “Mac OS X” is no more. Instead, Apple’s desktop operating system is now simply called OS X. The “Mac” in “Mac OS X” is no more. Instead, Apple’s desktop operating ...

That operating system was called “Mac OS” and that operating system generation was in use for almost twenty years. Mac OS introduced windowed computing, as well as operating stables like a file ...

Apple will be unveiling its new macOS in less than a month. There is speculation about the name in the run-up.