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1 definition found
 for Power Mac
From The Free On-line Dictionary of Computing (18 March 2015) :

  Power Mac
  Power Macintosh
      Apple Computer's personal computer based on the
     PowerPC, introduced on 1994-03-14.
     The Power Mac G4 (Quicksilver 2002) was the first Power Mac to
     clock at 1 GHz.  In mid-2003, the Power Mac G5 was released,
     the first Mac to be based on a 64-bit architecture.  IBM
     manufactured the CPU for this new model.  The clock speed was
     initially 1.6 GHz but a dual 2 GHz system was available in
     September.  Existing 680x0 code (both applications and
     device drivers) run on Power Mac systems without modification
     via a Motorola 68LC040 emulator.  The performance of these
     unmodified applications is equivalent to a fast 68040-based
     Macintosh, e.g. a fast Macintosh Quadra.
     The Power Mac runs Macintosh operating system from System
     7.5 to Mac OS 8.5.
     Latest version, as of 2003-11-26: Power Mac G5.
     http://apple.com/powermac/)">Power Mac Home (http://apple.com/powermac/).

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