PL-11

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

PL-11

   <language> A high-level machine-oriented language for the
   {PDP-11} developed by R.D. Russell of CERN in Nov 1971.  It is
   similar to {PL360} and is written in {Fortran IV} and
   {cross-compile}d on other machines.

   (1995-01-05)