macOS is a series of operating systems developed by Apple for their Mac platform. macOS is the second-most commonly used operating system after Microsoft Windows. It first became publicly available in 1984 with the release of the Macintosh 128k.
macOS Catalina desktop (19A583)
The classic Mac OS was originally written for the Motorola 68k architecture. The 68k architecture was used from 1984 to 1991, after which Apple transitioned to PowerPC. PowerPC would be used until the classic Mac OS's discontinuation in 2002. Classic Mac OS was based on a simple kernel design, which eventually became too limited and crash-prone for applications. In response, Apple bought NeXT and used NeXTSTEP as a base to develop Mac OS X. In 2006, Apple started to switch to using x86 (Intel) processors in Macs. Support for PowerPC in Mac OS X was dropped in 2009.
The Classic Mac OS can run standalone, and under Mac OS X using the Classic system layer. Only certain versions of Mac OS 9 can run under the Classic system layer, and the layer itself was dropped after Mac OS X Tiger.
PearPC is a useful emulator that can run PowerPC builds of Mac OS X under Windows or other x86 operating systems. PCE and Mini vMac are able to run 68k builds of Mac OS, QEMU is also capable of running earlier PPC builds of MacOS, and VirtualBox and VMware Fusion can run x86/64 builds of Mac OS X.
The maximum version of Mac OS X, OS X, or macOS supported by each G3 and later Mac follows. For complete specs on a particular system, click the name of the Mac. For all Macs that are compatible with a specifc maximum supported version of Mac OS X - courtesy of EveryMac.com's Ultimate Mac Sort - click the OS of interest. Mac OS X Tiger - έκδοση 10.4, κυκλοφόρησε στους τελικούς χρήστες την Παρασκευή 29 Απριλίου 2005; Mac OS X Leopard - έκδοση 10.5, κυκλοφόρησε στους τελικούς χρήστες την. Earlier versions of the Mac OS are not supported on each system. Mac OS 9/Classic Support may additionally be of interest. For complete specs on a particular system, click on the name of the Mac (left column). 1 Mac mini G4/1.33 X 10.4.2 (8D40) 1 Mac mini G4/1.5 X 10.4.2 (8D40) 1 iMac G5 1.9 17' (iSight) X 10.4.2 (8E102). Feb 21, 2013 I removed the machine check from the Mac OS X 10.4.4 installation package, because this was a machine specific version of Mac OS X 10.4.4 (for iMacs). No versions of VMware Fusion support OS X 10.4.11 in a VM, and the VMware Tools are incompatible with Mac OS X 10.4.x. Oct 22, 2018 E-Maculation: All About Macintosh Emulation (Site updated October 22, 2018) Welcome E-Maculation is dedicated to emulation of the classic Macintosh computer in Mac OS X, Windows and Linux. This is possible through the use of emulators such as SheepShaver, Basilisk II, Mini vMac.
Timeline[edit | edit source]Classic[edit | edit source]
The original Macintosh System Software is based on the Lisa OS and UI concepts from Xerox PARC. It uses a monolithic architecture but lacks support for memory management, protected memory, access controls, and conflict-free extensions. Only one application at a time could be supported under System Software until version 5 when MultiFinder was introduced. In 1997, Apple rebranded the Macintosh System Software to Mac OS. Mac OS would continue to be developed until the introduction of Mac OS X, after which Apple only delivered minor updates to the classic Mac OS. The final minor updates were designed to ease the transition to OS X. Carbon, an API introduced with Mac OS 8, works as the transitional API for classic Mac OS and Mac OS X applications.
Mac OS X / macOS[edit | edit source]
Mac OS X is the current incarnation of Mac OS. The first version released was Mac OS X Server in 1999. Unlike the classic Mac OS, Mac OS X is based on NeXTSTEP (OPENSTEP) and uses its frameworks and architectures. In 2016, Apple began to use the macOS moniker to brand Mac OS X alongside their other operating systems (watchOS, tvOS, iOS).
Notes[edit | edit source]
Mini Vmac For Mac Os X 10.4 10 4 Tiger
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