Mac OS is the computer operating system for Apple Computer's Macintosh line of personal computers and workstations. A popular feature of its latest version, Mac OS X, is a desktop interface with some 3-D appearance characteristics.
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PPG Paints Arena. information. Consol Energy Center 1001 Fifth Avenue, Pittsburgh, PA 15219 Consol Energy Center is Pittsburghâs premier arena venue and one of the most impressive arenas in the United States.