

Unlike virtually all other contemporary PCs, the Mac OS (initially designated simply System Software, with a version number appended) was graphically based. The Macintosh heralded the era of graphical user interface (GUI) systems, and it inspired Microsoft Corporation to develop its own GUI, the Windows OS.Īpple’s marketing for the introduction of the Macintosh focused heavily on its operating system’s intuitive ease of use. The OS was introduced in 1984 to run the company’s Macintosh line of personal computers (PCs). MacOS, formerly (1984–2001) Mac OS and (2001–2016) Mac OS X, operating system (OS) developed by the American computer company Apple Inc.
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