Mac OS: Difference between revisions

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[[Category:Operating Systems]]'''Mac OS''' is the operating system used in [[Macintosh]] computers since their introduction. The current version of [[Mac OS X]], which traces its roots to [[wp:NextStep|NextStep]], [[wp:Mach (kernel)|Mach]], and [[BSD]]. 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 Motorola 680x0 processor), which are unable to run versions newer than 8.1. (In fact, many older Macs can't run OS 8 at all.)
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