Source : Free On-Line Dictionary of Computing

Actus
     
         {Pascal} with parallel extensions, similar to the
        earlier {Glypnir}.  It has parallel constants and {index
        set}s.  Descendants include {Parallel Pascal}, {Vector C} and
        {CMU}'s language {PIE}.
     
        ["A Language for Array and Vector Processors," R.H. Perrott,
        ACM TOPLAS 1(2):177-195 (Oct 1979)].
     
        (1994-11-08)