MacOS

"It just works."

Apple's macOS (formerly known as Mac OS X, then just OS X), is an operating system that powers their Macintosh (or simply Mac) computer line.

It is the successor to the "classic" Mac OS system that powered the Macs from 1984 to 2001, although technically it's based on the Unix-derived NeXTSTEP.

Macs are known for their ease of use, stylish design, and absurd prices. The system's game library is somewhat limited, compared to Windows, but many major games do get a Mac port these days. Also, by using WINE and Boxer, you can run PC games on a Mac.