Mac OS: Difference between revisions

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[[Category:Operating Systems]]
[[Category:Operating Systems]]'''Mac OS''' is the [[:Category:Operating Systems|operating system]] used in [[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. The current version is '''[[wp:Mac OS X|Mac OS X]]''' 10.6 (often referred to as simply '''OSX'''), which is derived from [[wp:NeXTSTEP|NeXTSTEP]], and has a [[wp:Mach (kernel)|Mach]] microkernel running a [[BSD]] compatibility layer. Most applications are written in [[Objective-C]] using the [[Cocoa]] framework.
'''Mac OS''' 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. The current version is '''[[wp:Mac OS X|Mac OS X]]''' 10.6 (often referred to as simply '''OSX'''), which is derived from [[wp:NeXTSTEP|NeXTSTEP]], and has a [[wp:Mach (kernel)|Mach]] microkernel running a [[BSD]] compatibility layer. Most applications are written in [[:Category:Objective-C|Objective-C]] using the [[Cocoa]] framework.


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


==Older versions==
=Older versions=


Pre-X versions of Mac OS were written in-house at Apple and were based in part on the slightly earlier [[wp:Apple Lisa|Lisa Office System]]. "Classic" 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 even run [[wp:Mac OS 8|OS 8]] at all.) Depending on the specific model, [[wp:PowerPC|PowerPC]] Macs support anywhere from [[wp:System 7|System 7.1.2]] up to OS X 10.5. (OS X 10.6 dropped support for PowerPC Macs.)
Pre-X versions of Mac OS were written in-house at Apple and were based in part on the slightly earlier [[wp:Apple Lisa|Lisa Office System]]. "Classic" 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 even run [[wp:Mac OS 8|OS 8]] at all.) Depending on the specific model, [[wp:PowerPC|PowerPC]] Macs support anywhere from [[wp:System 7|System 7.1.2]] up to OS X 10.5. (OS X 10.6 dropped support for PowerPC Macs.)


=See also=
For more information, see [[wp:Mac OS|Wikipedia's Mac OS page]].
* [[wp:Mac OS|Wikipedia's Mac OS page]]

Revision as of 23:02, 2 February 2011

Mac OS is the operating system used in Macintosh computers since their introduction in 1984. Some appliances (notably the iPhone and iPad) also run derivative versions of Mac OS. The current version is Mac OS X 10.6 (often referred to as simply OSX), which is derived from NeXTSTEP, and has a Mach microkernel running a BSD compatibility layer. Most applications are written in Objective-C using the Cocoa framework.

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

Older versions

Pre-X versions of Mac OS were written in-house at Apple and were based in part on the slightly earlier Lisa Office System. "Classic" Mac OS is still in use on many older Macs, especially 68k Macs (Macs with a Motorola 680x0 processor), which are unable to run versions newer than 8.1. (In fact, many older Macs can't even run OS 8 at all.) Depending on the specific model, PowerPC Macs support anywhere from System 7.1.2 up to OS X 10.5. (OS X 10.6 dropped support for PowerPC Macs.)

See also