Mac OS Tutorial And Manual – Mac OS is Apple’s OS line of operating systems. Guides and tutorials for new users of Mac OS. Includes a look at the operating system’s security features, applications, maintenance, and daily use.
OS X is a series of Unix-based graphical interface operating systems (OS) developed and marketed by Apple Inc. It is designed to run on Macintosh computers, having been pre-installed on all Macs since 2002.