macOS kernel is fork of 4.4BSD, which later become FreeBSD. It comes from NextSTEP era, when Steve Jobs wasn't with Apple. 

kristapsk

MacOS isn't Linux at all, Darwin (kernel of macOS) is fork of BSD, completely independent UNIX.

Oh, interesting, didn't know that. Thanks for calling me out, lol

I just guessed that it's some branch of UNIX.

polls

Which operating system is your daily driver?

> MacOS isn't Linux at all, Darwin (kernel of macOS) is fork of BSD, completely independent UNIX.

Oh, interesting, didn't know that. Thanks for calling me out, lol

I just guessed that it's some branch of UNIX.