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. This is a 720,000 square foot venue known for sporting and music events, located in Pittsburgh, PA. Opened in August of 2010, the venue features seating for 19,758 people. This venue has hosted events for National Hockey League, Justin Bieber, WWE Raw, Janet Jackson, Blake Shelton, and Jim Gaffigan, among other sporting, comedy, and concert events.