 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 in a partition of OS/360 Release 17 MFT II or MVT or above.CPS was implemented as an interpreter, and users could select either a rudimentary form of BASIC or a reasonably complete version of PL/I.