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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 ...
Similar to Sonoma, the 2019 iMac is the only supported Intel Mac that lacks a T2 security chip. macOS Sequoia is the first version of macOS to drop support for a Mac with a T2 security chip. The following devices are compatible with macOS Sequoia: [2] iMac (2019 and later) iMac Pro (2017) MacBook Air (2020 and later) MacBook Pro (2018 and later)
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 ...
Consumer releases of Mac OS X included more backward compatibility. Mac OS applications could be rewritten to run natively via the Carbon API; many could also be run directly through the Classic Environment with a reduction in performance. The consumer version of Mac OS X was launched in 2001 with Mac OS X 10.0.
OS X Yosemite (/ j oʊ ˈ s ɛ m ɪ t i / yoh-SEM-it-ee; version 10.10) is the eleventh major release of macOS, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Yosemite was announced and released to developers on June 2, 2014, at WWDC 2014 and released to public beta testers on July 24, 2014.
Model Family Discontinued 2000 February 16, 2000 PowerBook FireWire (G3 "Pismo") PowerBook G3: January 9, 2001 iBook SE: iBook: September 13, 2000 July 19, 2000 Power Mac G4 Cube: Power Mac: July 3, 2001 iMac G3 (Summer 2000) iMac: February 22, 2001 September 13, 2000 iBook (FireWire), iBook SE: iBook: May 1, 2001 2001 January 7, 2001 PowerBook ...
The PowerPC 970 ("G5") was the first 64-bit Mac processor. The PowerPC 970MP was the first dual-core Mac processor and the first to be found in a quad-core configuration. It was also the first Mac processor with partitioning and virtualization capabilities. Apple only used three variants of the G5, and soon moved entirely onto Intel architecture.
The release of Big Sur was the first time the major version number of the operating system had been incremented since the Mac OS X Public Beta in 2000. After sixteen distinct versions of macOS 10 ("Mac OS X"), macOS Big Sur was presented as version 11 in 2020, and every subsequent version has also incremented the major version number, similarly ...