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  2. macOS Catalina - Wikipedia

    en.wikipedia.org/wiki/MacOS_Catalina

    e. 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. Catalina is the first version of macOS to support only 64-bit applications ...

  3. macOS version history - Wikipedia

    en.wikipedia.org/wiki/MacOS_version_history

    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 ...

  4. macOS Big Sur - Wikipedia

    en.wikipedia.org/wiki/MacOS_Big_Sur

    macOS Big Sur is the first release of macOS for Macs powered by Apple-designed ARM64 -based processors, a key part of the transition from Intel x86-64 -based processors. [19] The chip mentioned in demo videos, and used in the Developer Transition Kit, is the A12Z Bionic. On November 10, 2020, Apple announced the first Mac Apple silicon chip ...

  5. macOS - Wikipedia

    en.wikipedia.org/wiki/MacOS

    Intel-based Macs would run a new recompiled version of OS X along with Rosetta, a binary translation layer which enables software compiled for PowerPC Mac OS X to run on Intel Mac OS X machines. [139] The system was included with Mac OS X versions up to version 10.6.8. [140] Apple dropped support for Classic mode on the new Intel Macs.

  6. Darwin (operating system) - Wikipedia

    en.wikipedia.org/wiki/Darwin_(operating_system)

    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. It is composed of code derived from NeXTSTEP, FreeBSD, [ 3] other BSD operating systems ...

  7. Mac transition to Intel processors - Wikipedia

    en.wikipedia.org/wiki/Mac_transition_to_Intel...

    macOS. The Mac transition to Intel processors was the process of switching the central processing units (CPUs) of Apple 's line of Mac and Xserve computers from PowerPC processors over to Intel 's x86-64 processors. [a] The change was announced at the 2005 Worldwide Developers Conference (WWDC) by then-Apple CEO Steve Jobs, who said Apple would ...

  8. Mac operating systems - Wikipedia

    en.wikipedia.org/wiki/Mac_operating_systems

    The current Mac operating system is macOS, originally named Mac OS X until 2012 and then OS X until 2016. [3] It was developed between 1997 and 2001 after Apple's purchase of NeXT. It brought an entirely new architecture based on NeXTSTEP, a Unix system, that eliminated many of the technical challenges that the classic Mac OS faced, such as ...

  9. Apple Filing Protocol - Wikipedia

    en.wikipedia.org/wiki/Apple_Filing_Protocol

    Apple, Inc. Port (s) 548. The Apple Filing Protocol ( AFP ), formerly AppleTalk Filing Protocol, is a proprietary network protocol, and part of the Apple File Service ( AFS ), that offers file services for macOS, classic Mac OS, and Apple II computers. In OS X 10.8 Mountain Lion and earlier, AFP was the primary protocol for file services.