Mac OS X

Notice: This article is very short and probably incomplete. Be the first to add new content to it now.

Mac OS X is an operating system for Apple Macintosh computers. In 2016 it was renamed to macOS.

OS X

Mac OS X is based on the Unix Mach kernel and is derived from the Berkeley Software Distribution (BSD) implementation of Unix in NeXTSTEP. NeXTSTEP was the object-oriented operating system developed by Steve Jobs' company "NeXT" after he left Apple in 1985. The Macintosh pioneered UI was then placed on top of the Unix core. This version has been shipped on all Macs since 2002.

OS X Versions

OS X versions

• Rhapsody Developer Release DR1/DR2 (Grail1Z4 / Titan1U)
• Mac OS X Server 1.0 (Hera)
• Mac OS X Developer (Preview)
• Mac OS X Public Beta (Kodiak)
• Mac OS X 10.0 (Cheetah)
• Mac OS X 10.1 (Puma)
• Mac OS X 10.2 (Jaguar)
• Mac OS X 10.3 (Panther)
• Mac OS X 10.4 (Tiger) starting with Tiger 10.4.7 can run on X86 processors.
• Mac OS X 10.5 (Leopard)
• Mac OS X 10.6 (Snow Leopard) Runs on Intel Processors only.
• Mac OS X 10.7 (Lion)
• Mac OS X 10.8 (Mountain Lion)
• Mac OS X 10.9 (Mavericks)
• Mac OS X 10.10 (Yosemite)
• Mac OS X 10.11 (El Capitan)
• macOS 10.12 (Sierra)
• macOS 10.13 (High Sierra)
• macOS 10.14 (Mojave)
• macOS 10.15 (Catalina) [released Oct 8, 2019] drops support for 32bit apps.
• macOS 11 (Big Sur) released Nov 12, 2020 macOS Big Sur
• macOS 12 (Monterey) released June 10, 2021
  • Focus feature to keep notifications at bay.
  • Universal Control allows a single mouse and keyboard for both Mac and iPad seamlessly. Just place the iPad next to the Mac.
  • AirPlay to Mac. Instead of AirPlay to TV it goes to the Mac display.
  • Shortcuts coming to the Mac.
  • Safari has a new interface. Tabs are more streamlined. Tablets allow you to group tabs. Web extensions are now available

For more Information

• See eBook software for programs that will work on Mac OS X.
• See Mac Os X on Wikipedia
• See also https://en.wikipedia.org/wiki/Macintosh_operating_systems
• http://freeengineer.org/learnUNIXin10minutes.html learn the Unix underpinnings in 10 minutes
• See also iOS