Mac OS: Difference between revisions
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[[Category:Operating Systems]]
'''macOS''' is the [[:Category:Operating Systems|operating system]] used in [[wp:Macintosh|Macintosh]] computers since their introduction in 1984. Some appliances (notably the [[wp:iPhone|iPhone]] and [[wp:iPad|iPad]]) also run derivative versions of Mac OS, named iOS. The current version is '''[[wp:macOS Monterey|macOS Monterey]]''' (version 12). Modern macOS is derived from [[wp:NeXTSTEP|NeXTSTEP]], and has a [[wp:Mach (kernel)|Mach]]-based microkernel running a [[BSD]] compatibility layer. Most applications are written in [[:Category:Objective-C|Objective-C]] and [[:Category:Swift|Swift]] using the [[Cocoa]] framework.
Versions of macOS from 10.0 to 10.7 were branded as '''Mac OS X''', and versions 10.8 to 10.11 were simply called '''OS X''', with more recent releases still occasionally unofficially referred to as such. Previous versions were simply called '''Mac OS''', while the oldest versions were referred to as '''System''' followed by the version number, e.g. "[[wp:System 7|System 7]]".
"Classic" (pre-X) Mac OS is still in use on many older Macs, especially 68k Macs (Macs with a [[wp:Motorola 68000 family|Motorola 680x0]] processor), which are unable to run versions newer than 8.1. (In fact, many older Macs can't run [[wp:Mac OS 8|OS 8]] at all.) Depending on the specific model, PowerPC Macs support anywhere from [[wp:System 7|System 7.1.2]] up to OS X.▼
"'''Mac'''" is a term which describes the broader class of Apple Macintosh computer hardware and their operating systems.
=Older versions=
▲
=See also=
* [[wp:Macintosh operating systems|Wikipedia's Mac OS page]]
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