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Mac OS X Operating System

Mac OS is a series of operating systems developed and sold by Apple Computer for their Macintosh line of computers. The orignial operating system, introduced in 1984, was one of the first commercially available graphical user interfaces.  The tenth version of the operating system was branded Mac OS X, which stands for Macintosh Operating System 10.  In recent years, Apple has released updates to OS X annually.  OS X is the basis for Apple's other operating systems: iOS, which runs on iPhones and iPads, WatchOS, which runs on the Apple Watch, and tvOS which runs on Apple TVs.

    Version Name Release Year
OS X 10.13 HighSierra 2017
OS X 10.12 Sierra 2016
OS X 10.11 El Capitan 2015
OS X 10.10 Yosemite 2014
OS X 10.9 Mavericks 2013
OS X 10.8 Mountain Lion 2012
Mac OS X 10.7 Lion 2011
Mac OS X 10.6 Snow Leopard 2009
Mac OS X 10.5 Leopard 2007
Mac OS X 10.4 Tiger 2005
Mac OS X 10.3 Panther 2003
Mac OS X 10.2 Jaguar 2002
Mac OS X 10.1 Puma 2001
Mac OS X 10.0 Cheetah 2001
Mac OS X 10 Beta Kodiak 2000

Getting Started in OS X

Apple's website and are both excellent sources of information about OS X. MPT recommends you start there with the following:

Mac OS High Sierra New FeaturesLearn about the cool new features in High Sierra, including the apps that come bundled with the operating system.  Explore the changes in Photos, iCloud, Safari, Mail, Notes, and more.

Mac OS High Sierra Essential Training: Learn the ins and outs of High Sierra, the latest Mac operating system.  The course starts off with the basics--learn to set your system preferences and user accounts, organize the desktop, work with the launchpad, and set up the computer so that it works best for you.  Then you will learn to work with your files and the core applications that come bundled with High Sierra--save files and find them again quickly, work with email and calendars, send instant messages, use video chat, navigate iTunes and multitask between multiple applications.  Finally, you will learn how to back up and restore files you you never lose important work.

Mac OS X, Switching from PC to Mac: A short guide published by Apple outlining that basics you need to know to make a painless switch from Windows to Mac.

Mac OS Support​: Become an OS X expert with Apple's multi-media guide, which includes all the topics, resources, and contact options you need for macOS High Sierra, Sierra, and more.

Mac Training

Apple offers free hour-long workshops on a variety of topics, including OS X, iPhoto, iMovie, iWork, and more.  Visit Apple's website to find a schedule of free classes at a store near you.

Macs on Campus

For a list of campus computer labs with Macs available for student use, visit our Computer Labs page.  DePaul faculty and staff can find more information about using DePaul-owned Mac computers on our Macs on Campus​ page.