Web Results

en.wikipedia.org/wiki/Macintosh_operating_systems

macOS (originally named "Mac OS X" until 2012 and then "OS ... that officially succeeded the classic Mac OS in 2001.

www.apple.com/macos/how-to-upgrade

Before you upgrade, we recommend that you back up your Mac. Then, if your Mac is running OS X Lion 10.7.5 or later, you can upgrade directly to macOS High ...

support.apple.com/en-us/HT201260

Aug 4, 2017 ... About This Mac shows the version and build of your Mac operating system. Is your Mac operating system up to date? Does it meet the system ...

www.apple.com/lae/macos/sierra

macOS Sierra does even more for you, so you can do more with your Mac. It helps you ... Access the files on your Mac desktop right on your iPhone. ... System  ...

support.apple.com/en-us/HT201686

Aug 21, 2017 ... If you try to start up your Mac from a hard disk, network volume, or Time Machine backup that contains an incompatible version or build of ...

support.apple.com/en-us/HT204904

Jul 27, 2017 ... Learn how to install the Mac operating system again on your Mac.

www.apple.com/macos/high-sierra

macOS High Sierra Your Mac. ... People love working with their photos on a Mac. .... Performance will vary based on system configuration, network connection, ...

www.operating-system.org/betriebssystem/_english/bs-macos.htm

Mar 27, 2017 ... Mac OS Logo Mac OS was named by the company Apple as "Mac System Software" in the beginning, a specially designed operating system ...

whatis.techtarget.com/definition/Mac-OS

Mac OS is the computer operating system for Apple Computer's Macintosh line of personal computers and workstations.