ABOUT MAC OS

 

Mac OS is a series of graphical user interface-based operating systems developed by Apple Inc. for their Macintosh line of computer systems. Mac OS is credited with popularizing the graphical user interface. The original form of what Apple now calls OS X was the integral and unnamed system software first introduced in 1984 with the original Macintosh, and referred to simply as the System software.

Concept
Apple deliberately sought to minimize the user's conceptual awareness of the operating system: Tasks which required more operating system knowledge on other systems would be accomplished by intuitive mouse gestures and simple graphic controls on a Macintosh, making the system more user-friendly and easily mastered. This would differentiate it from then current systems such as MS-DOS which were more technically challenging to operate.
The core of the system software was held in ROM, with updates provided free of charge by Apple dealers (on floppy disk). The user's involvement in an upgrade of the operating system was also minimized to running an installer, or simply replacing system files, the simplicity of which again differentiated the product from others.

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