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  2. macOS version history - Wikipedia

    en.wikipedia.org/wiki/MacOS_version_history

    However, the current macOS is a UNIX operating system built on technology that had been developed at NeXT from the 1980s until Apple purchased the company in early 1997. [1]. macOS components derived from BSD include multiuser access, TCP/IP networking, and memory protection. [2] Although it was originally marketed as simply "version 10" of Mac ...

  3. macOS Big Sur - Wikipedia

    en.wikipedia.org/wiki/MacOS_Big_Sur

    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 was the successor to macOS Catalina (macOS 10.15).

  4. macOS Monterey - Wikipedia

    en.wikipedia.org/wiki/MacOS_Monterey

    macOS Monterey (version 12) is the eighteenth major release of macOS, Apple 's desktop operating system for Macintosh computers. The successor to macOS Big Sur, it was announced at WWDC 2021 on June 7, 2021, [3][4][5][6] and released on October 25, 2021. [7][8] macOS Monterey was succeeded by macOS Ventura, which was released on October 24 ...

  5. Mac operating systems - Wikipedia

    en.wikipedia.org/wiki/Mac_operating_systems

    Mac operating systems were developed by Apple Inc. in a succession of two major series. In 1984, Apple debuted the operating system that is now known as the classic Mac OS with its release of the original Macintosh System Software. The system, rebranded Mac OS in 1997, was pre-installed on every Macintosh until 2002 and offered on Macintosh ...

  6. macOS - Wikipedia

    en.wikipedia.org/wiki/MacOS

    At macOS's core is a POSIX-compliant operating system built on top of the XNU kernel, [78] (which incorporated large parts of FreeBSD kernel [11]) and FreeBSD userland [11] for the standard Unix facilities available from the command line interface. Apple has released this family of software as a free and open source operating system named Darwin.

  7. macOS Sequoia - Wikipedia

    en.wikipedia.org/wiki/MacOS_Sequoia

    macOS Sequoia (version 15) is the twenty-first and current major release of Apple 's macOS operating system, the successor to macOS Sonoma. It was announced at WWDC 2024 on June 10, 2024. [4] In line with Apple's practice of naming macOS releases after landmarks in California, it is named after Sequoia National Park, located in the Sierra ...

  8. List of Apple operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Apple_operating...

    The following is a list of operating systems released by Apple Inc. As of 2023, there are six supported software platforms: iOS, iPadOS, watchOS, tvOS, macOS and visionOS. Prior to the introduction of the Macintosh in early 1984, Apple had several operating systems for the Apple II series, Apple SOS for the Apple III series, and Lisa OS and ...

  9. macOS Mojave - Wikipedia

    en.wikipedia.org/wiki/MacOS_Mojave

    macOS Mojave (/ m oʊ ˈ h ɑː v i, m ə-/ mo-HAH-vee; version 10.14) is the fifteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. Mojave was announced at Apple's Worldwide Developers Conference on June 4, 2018, and was released to the public on September 24, 2018.