资料来源 : Free On-Line Dictionary of Computing

Programmable Airline Reservation System
     
         (PARS) An {IBM} proprietary large scale airline
        reservation application, executing under the control of IBM's
        {ACP} (and later its successor, {TPF}).
     
        In the early days of automated reservations systems in the
        1960s and 1970s the combination of ACP and PARS provided
        unprecendented scale and performance from an on-line
        {real-time} system, and for a considerable period ranked among
        the largest networks and systems of the era.
     
        {IPARS} was the international version.
     
        (1999-01-18)