Want to know what the next version of macOS will be called? Curious about the versions of Mac OS X that came before? Here we’ll fill you in on the names of the different versions of the Mac ...

And you're not limited to macOS—there's also working versions of NeXTSTEP ... 23 years ago, as Mac OS X—has been around ...

Owners of Apple's newest Mac models running M4 chips aren't able to run older versions of macOS in a virtual machine, thanks ...