Mac OS: Difference between revisions

'''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 HighBig SierraSur|macOS HighBig SierraSur]]''' (10.13version 11), whichand the upcoming 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 10.117 were branded as '''Mac OS X''', and theversions current10.8 releaseto is10.11 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]]".

"'''Mac'''" is a term which describes the broader class of Apple Macintosh computer hardware and their Macintosh operating systems.