Early PL/I

from The Free On-line Dictionary of Computing (8 July 2008)

Early PL/I

   <language> (EPL) A {PL/I} subset dialect by McIlroy, Morris et
   al, the first running PL/I {compiler}.  It was used by {Bell
   Labs} and {MIT} to write {Multics}.  EPL had extensions to
   handle the segment/offset nature of {Multics} pointers.

   See also {REPL}, {TMG}.

   ["EPL Reference Manual", Project MAC, April 1966].

   [Sammet 1969, p. 542].

   (1995-11-15)