Wondering which versions of macOS your Mac can run? We’ve put together a macOS compatibility checker that will show you what Macs the different versions of macOS and Mac OS X support, so you can ...

I started using OS X full-time when I was 18 and the Mac was 25. Booting up my first Apple computer, a 2009 MacBook Pro running OS X 10.5 Leopard, was like getting behind the wheel of a Porsche ...