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Mac OS is its own operating system with its own kernel. It's neither Linux nor BSD.
by meruru 7y ago
Mac OS is its own operating system with its own kernel. It's neither Linux nor BSD.
- dnautics 7y agooh good point, TIL only the posix and syscall layer is BSD. nonetheless it's not at all a linux.
- pjmlp 7y agoIf you want to see how much different they are, have a look at "Mac OS X Internals: A Systems Approach" https://www.amazon.com/Mac-OS-Internals-Systems-Approach-ebook/dp/B004Y4UTLI https://www.amazon.com/Mac-OS-Internals-Systems-Approach-ebo... Since then, has macOS become even further away from BSD, with its own Network stack, XPC, SIP and many other architecture changes.
- mailslot 7y agoIt’s a certified UNIX, which Linux & BSD are clones of (UNIX).
- cat199 7y agothis is taking the post USL vs BSD legalized definition of unix, which, w/r/t history, is revisionist. following the lineage and where active development happened at the time (80s/early 90s), one can easily make the case that BSD is unix.