What are the Mac operating systems in order?

Apple has released a series of proprietary graphical user interface-based operating systems called macOS for its Macintosh line of computers. Each new release of macOS typically includes new features, improvements, and security updates. Here is a chronological list of the major releases of macOS in order:

System 1 (1984): The first operating system for the Macintosh 128K.

System 2 (1985): Introduced support for the Hierarchical File System (HFS).

System 3 (1986): Added support for color and the AppleTalk networking protocol.

System 4 (1987): Introduced the Finder and MultiFinder.

System 5 (1987): A major update that added a number of new features, including the Apple Desktop Bus (ADB).

System 6 (1988): Introduced support for the 68030 processor and virtual memory.

System 7 (1991): A major overhaul that introduced a new user interface, the Dock, and support for PowerPC processors.

Mac OS 8 (1997): Added support for the HFS+ file system and the Internet.

Mac OS 9 (1999): The last major release of the classic Mac OS.

Mac OS X (2001): A complete rewrite of the Mac OS based on the Unix operating system.

Mac OS X 10.0 (2001): The first release of Mac OS X.

Mac OS X 10.1 (2001): Added support for the iPod.

Mac OS X 10.2 (2002): Introduced the Aqua user interface.

Mac OS X 10.3 (2003): Added support for 64-bit applications.

Mac OS X 10.4 (2005): Introduced the Dashboard widget system.

Mac OS X 10.5 (2007): Added support for the iPhone.

Mac OS X 10.6 (2009): Introduced the App Store.

Mac OS X 10.7 (2011): Added support for AirPlay.

OS X 10.8 (2012): Introduced the Notification Center.

OS X 10.9 (2013): Added support for iCloud Drive.

OS X 10.10 (2014): Introduced the Yosemite user interface.

macOS 10.11 (2015): Added support for Siri.

macOS 10.12 (2016): Introduced the Sierra user interface.

macOS 10.13 (2017): Added support for the HEVC video codec.

macOS 10.14 (2018): Introduced the Mojave user interface.

macOS 10.15 (2019): Added support for the Catalyst framework.

macOS 11.0 (2020): Introduced the Big Sur user interface.

macOS 12.0 (2021): Introduced the Monterey user interface.

macOS 13.0 (2022): Introduced the Ventura user interface.

Related Questions:

  1. What is the latest version of macOS? macOS 13.0 Ventura
  2. When was the first version of macOS released? 2001
  3. What is the major difference between Mac OS and macOS? macOS is based on the Unix operating system, while Mac OS is not.
  4. What is the name of the file system used by macOS? HFS+
  5. Which version of macOS introduced the App Store? Mac OS X 10.6 Snow Leopard

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