macOS - Wikipedia
macOS, originally Mac OS X, previously shortened as OS X, is a Unix-based [6] [7] operating system developed and marketed by Apple since 2001. It is the primary operating system for Apple's Mac computers.
How to download and install macOS - Apple Support
2024年9月16日 · Download and install current or previous versions of the Mac operating system on compatible Mac computers. To maintain your computer's security, stability, and compatibility, Apple recommends using the latest macOS that is compatible with your Mac. macOS updates and upgrades also include the latest features and built-in apps such as Safari.
The full list of all macOS versions until 2024 - Setapp
2024年7月4日 · Mac OS X Leopard (2007): Added Time Machine, Boot Camp, and revamped design. OS X Yosemite (2014): Introduced a flat design and Continuity features. macOS Big Sur (2020): Redefined the interface and introduced M1 chip support.
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.
macOS - Official Apple Support
Learn how to set up and use your Mac computer. Find all the topics, resources, and contact options you need for Mac.
Latest macOS versions: Every update including the ... - Macworld
2024年12月13日 · Curious about the versions of Mac OS X that came before? Here we’ll fill you in on the names of the different versions of the Mac operating system in order: from the newest macOS to the first...
What is OS X? | Definition from TechTarget
What is OS X? OS X, also referred to as macOS X or Mac OS X, is Apple's proprietary, Unix-based operating system. Released in 2001 as the successor to Mac OS 9, OS X incorporates support for Unix-based applications as well as for those written specifically for the Mac.