Conversational Programming System

Conversational Programming System or CPS was an early Time-sharing system offered by IBM which ran on System/360 mainframes circa 1967 through 1972. CPS was implemented as an interpreter, and users could select either a rudimentary form of BASIC or a reasonably complete version of PL/I. A third option provided remote job entry (RJE) features allowing users to submit JCL job streams for batch processing. A fourth option was called control mode. Normally, only the system operator would be permitted to use control mode. The available features in control mode included: