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  1. Wikipedia
    https://en.wikipedia.org/wiki/MacOS

    macOS - Wikipedia

    • macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and laptop computers, it is the second most widely used desktop OS, after Microsoft Windows and ahead of all Linux distributions, inc… See more

    History

    The heritage of what would become macOS had originated at NeXT, a company founded by Steve Jobs following his departure from Apple in 1985. There, the Unix-like NeXTSTEP operating system was developed, … See more

    Architecture

    At macOS's core is a POSIX-compliant operating system built on top of the XNU kernel, (which incorporated large parts of FreeBSD kernel ) and FreeBSD userland for the standard Unix facilities available from the … See more

    macOS versions: Every update including the latest macOS - Macw…
    A complete list of every version of Mac OS X and macOS in order, from the first to the current version of macOS. Here's every Mac operating system since Mac OS X launched.
    Macworld · https://www.macworld.com/article/…
    Wikipedia text under CC-BY-SA license
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    Table of Contents
    History
    Architecture
     
  1. Macworld
    https://www.macworld.com/article/672681

    macOS versions: Every update including the latest macOS

  3. Apple Support
    https://support.apple.com/en-us/102662

    How to download and install macOS - Apple Support

  4. Apple
    https://www.apple.com/by/macos/what-is

    macOS - What is macOS - Apple (BY)

    Learn about macOS, the operating system that powers every Mac and lets you do things you can’t with other computers. Discover its features, apps, privacy, security, and more.

  5. Setapp
    https://setapp.com/how-to/full-list-of-all-macos-versions

    The full list of all macOS versions until 2024 - Setapp

  6. Mac OS: Apple's Operating System
    Mac OS is the operating system that powers Apple's Mac computers, with a graphical user interface and distinctive features.
    GUI Software | Mac OS GUI Software | Graphical User Interface Examples | Software Gui
    conceptdraw.com
    Story is AI-generated. Sources:
    Find out which macOS your Mac is using - Apple Support
    macOS - Official Apple Support
    Find out which macOS your Mac is using – Apple Support (AU)
    Every macOS and Mac OS X version–including the latest update
    Feedback
  7. Wikipedia
    https://en.wikipedia.org/wiki/MacOS_v…

    macOS version history - Wikipedia

    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.

  8. Apple Support
    https://support.apple.com/en-us/109033

    Find out which macOS your Mac is using - Apple Support

    Nov 7, 2010 · Use About This Mac to check the version of Mac operating system (macOS) installed on your Mac. Then find out whether it's the latest (newest, most recent) version. Find out which macOS is installed. Find out …

  9. Wikipedia
    https://en.wikipedia.org/wiki/Mac_oper…

    Mac operating systems - Wikipedia

    Mac OS 9 was released in 1999.. The classic Mac OS is the original Macintosh operating system introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until Mac OS X in 2001. [6] [7]Apple released the …

  10. Apple
    https://www.apple.com/macos

    macOS Sequoia - Apple

    On Mac models with Apple silicon, macOS Sequoia introduces Apple Intelligence, which draws on your personal context to give you intelligence that’s most helpful and relevant for you. Writing, focus, and communication. New Writing Tools …

  11. Apple
    https://www.apple.com/newsroom/2021…

    macOS Monterey is now available - Apple

    Oct 25, 2021 · Learn about the latest version of macOS, which includes powerful new ways to connect, accomplish, and work across Apple devices. macOS Monterey is available as a free software update for Macs with Apple silicon …