Source : Free On-Line Dictionary of Computing

High Performance Computing and Communications
     
        (HPCC) High performance computing includes scientific
        workstations, supercomputer systems, high speed networks,
        special purpose and experimental systems, the new generation
        of large scale parallel systems, and application and systems
        software with all components well integrated and linked over a
        high speed network.
     
        ["Grand Challenges 1993: High Performance Computing and
        Communications", Committee on Physical, Mathematical and
        Engineering Sciences of the Federal Coordinating Council for
        Science, Engineering and Technology.]