For those of us who were around at the time the first Mac was released, System 1 was a revolutionary operating system. On that day, twenty years ago, Apple introduced the next generation of the Mac operating system – Mac OS X 10.0 “Cheetah.” The introduction was no small matter, as it marked a change in how Macs work that remains up to this day with macOS 11 “Big Sur.” Let’s take a look at the history of Mac operating systems from 1984 until now, starting with the “Classic” operating system introduced in 1984 and ending with Big Sur.Īt the beginning (1984), there was System 1. March 24, 2001, was a banner day for Mac users.
