V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CPL
       Combined Programming Language (DEC, PL/1)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CPL
       Control Panel Applet (MS, Windows, XP)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CPL
       Common Public License (IBM, IPL)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CPL
       Conversational Programming Language (DEC)


The Free On-line Dictionary of Computing (30 December 2018):

CPL

   Combined Programming Language.  U Cambridge and U London.  A
   very complex language, syntactically based on ALGOL 60, with a
   pure functional subset.  Provides the ..where.. form of local
   definitions.  Strongly typed but has a "general" type enabling
   a weak form of polymorphism.  Functions may be defined as
   either normal or applicative order.  Typed array and
   polymorphic list structures.  List selection is through
   structure matching.  Partially implemented on the Titan (Atlas
   2) computer at Cambridge.  Led to the much simpler BCPL.  "The
   Main Features of CPL", D.W. Barron et al, Computer J
   6(2):134-143 (Jul 1963).