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BSD Vs. Linux
(lemmy.world)
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
MacOS is actually not a BSD as some people like to think. It is Unix, it used to be posix tested but it has never, ever been a BSD. MacOS is based on the mach kernel, a kernel that was intended to replace the BSD kernel for a GPL licensed Unix. Most of the people who wanted a GPL Unix just went with Linux in the end. We are still waiting to see what Hurd has to off though. https://en.m.wikipedia.org/wiki/Mach_(kernel)
Your point is well taken and I appreciate expanding my knowledge on this a bit, but I don't think that it is that cut and dry. Mach, the kernel from which both is not Unix. Mach is basis for XNU (X is not Unix, sound familiar). From the screenshots from Wikipedia, pretending that BSD is not embedded within MacOS is just trying to obfuscate things. The Mach virtual memory manager for instance is in FreeBSD, so it goes the other way around as well.
https://en.wikipedia.org/wiki/Mach_%28kernel%29?wprov=sfla1
https://en.wikipedia.org/wiki/Darwin_%28operating_system%29?wprov=sfla1
https://en.wikipedia.org/wiki/XNU?wprov=sfla1