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).