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macOS. 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 ...
macOS. macOS Big Sur (version 11) is the seventeenth major release of macOS, Apple 's operating system for Macintosh computers. It was announced at Apple's Worldwide Developers Conference (WWDC) on June 22, 2020, [ 4] and was released to the public on November 12, 2020. [ 5][ 4][ 6] Big Sur is the successor to macOS Catalina, and was succeeded ...
Laptops unable to boot (fixed with 12.0.1 update) [22] [23] Inability to charge sleeping laptops with MagSafe (fixed with 12.1 update) [24] Mouse pointer memory leak issue (fixed with 12.1 update) [25] Audio issue with speaker and audio output crackling and popping [26] Problems connecting external displays to Mac using any version of Monterey [27]
Mac OS X succeeded classic Mac OS, the primary Macintosh operating system from 1984 to 2001. Its underlying architecture came from NeXT 's NeXTSTEP, as a result of Apple's acquisition of NeXT, which also brought Steve Jobs back to Apple. The first desktop version, Mac OS X 10.0, was released on March 24, 2001.
Darwin is the core Unix-like operating system of macOS (previously OS X and Mac OS X), iOS, watchOS, tvOS, iPadOS, audioOS, visionOS, and bridgeOS.It previously existed as an independent open-source operating system, first released by Apple Inc. in 2000.
Mac Pro (replacing the Power Mac G5) launched August 7, 2006. MacBook (replacing the iBook) launched May 16, 2006. MacBook Pro (replacing the PowerBook G4) launched February 26, 2008. iMac Aluminum, launched April 28, 2008. MacBook Air Unibody, launched January 15, 2008. MacBook Aluminum Unibody, launched June 8, 2009.
e. Mac OS 9 is the ninth and final major release of Apple's classic Mac OS operating system, which was succeeded by Mac OS X 10.0 in 2001, starting the Mac OS X family of operating systems. Introduced on October 23, 1999, it was promoted by Apple as "The Best Internet Operating System Ever", [ 5] highlighting Sherlock 2 ’s Internet search ...
macOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc. 's desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and released to the public on October 7, 2019.