620
Linux really has come a long way
(lemmy.dbzer0.com)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
It's easy to forget about MacOS when it only has 15% desktop market share.
Operating systems that started before 1991 that are still in active development (had a release in the last 12 months):
Almost made it:
That's an impressive list, 👍
I admit I forgot AIX, but the others there are reasons I didn't consider, I have explained in other posts why on BSD and MAC OS. Same arguments are true for most of your list.
But it's still an impressive and interesting list. And yes AIX absolutely qualifies.