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The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...
The first version of Mac OS X, Mac OS X Server 1.0, was a transitional product, featuring an interface resembling the classic Mac OS, though it was not compatible with software designed for the older system. Consumer releases of Mac OS X included more backward compatibility.
Year Launched Model Family Discontinued Lifespan 1983 January 19, 1983 Lisa [a] Compact: August 1, 1986 3 years, 6 months 1984 January 1, 1984 Lisa 2 [a] Compact: January 1, 1985 1 year January 24, 1984 Macintosh 128K: Compact: September 10, 1984 7 months September 10, 1984 Macintosh 512K: Compact: April 14, 1986 1 year, 7 months Macintosh 128K ...
In 1999, Mac OS X Server 1.0 was released, followed by Mac OS X 10.0, the first consumer release of the Mac OS X. From the release of Mac OS X 10.0 until early 2007, Mac OS X was the only software platform. In early 2007, iPhone OS was introduced, increasing the number of software platforms by one, from one to two. In 2010, iPhone OS was ...
Model Clock speed (MHz) FSB speed (MT/s) L1 cache (bytes) L2 cache (KB) Data path width/ Address width (bits) FPU Introduced Discontinued MC68030: Macintosh IIx: 16 16 512 — 32/32 68882: September 1988 October 1990 Macintosh SE/30: 16 16 512 — 32/32 68882 January 1989 October 1990 Macintosh IIcx: 16 16 512 — 32/32 68882 March 1989 ...
Model Family Discontinued November 1, 1980 Apple III: Apple III: December 1, 1981 Modem IIB (Novation CAT) Modems: December 1, 1981 Printer IIA (Centronics 779) Printers: December 1, 1981 Monitor III: Displays: December 1, 1981 Monitor II (various third party) Displays: December 1, 1981 Disk III: Drives: May 1, 1984 September 1, 1981 Apple ...
macOS Sonoma was succeeded by macOS Sequoia, which was released on September 16, 2024. The first developer beta was released on June 5, 2023, [6] and macOS Sonoma entered public beta on July 11, 2023. [7] macOS Sonoma is the final version of macOS that supports the 2018–2019 MacBook Air, as its successor, macOS Sequoia, drops support for ...
macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops support for those models. It is the last version of macOS that can run on Macs with 4GB of RAM.