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Line 1: {{stub}} XNU (acronym for "X is Not Unix") is a [[Hybrid Kernel\|hybrid kernel]] based on [~~https://en.~~[wikipedia~~.org/wiki/Mach_%28kernel%29~~:Mach (kernel)\|Mach]] and [~~https://en.~~[wikipedia~~.org/wiki/~~:Berkeley_Software_Distribution \|BSD]] which is used in OS X. It was developed to replace the obsolete classic Mac OS (Mac OS 9 and older) kernel, which had poor memory protection and cooperative multitasking. Mac OS X (or just "OS X") is an Apple's half-proprietary operating system for Macintosh computers, which is, in fact, able to be run on any modern x86-64 computer; it also has a mobile version, iOS. Darwin is ~~the~~a distribution of core open source components of OS X and iOS. == Features == Line 16: But it is wrong to classify XNU as a BSD flavor like FreeBSD. XNU and OS X introduce a lot of specific features, including: * own sandboxing system; * own file system hierarchy (with [~~https://en.~~[wikipedia~~.org/wiki/~~:Filesystem_Hierarchy_Standard \|FHS]] preserved); * Apple Events and FSEvents; * OpenDirectory, an authentification system;

MacOS: Difference between revisions

MacOS (view source)