IBM began development of CPCS in or before 1971. It was scheduled to be available in October 1972, although the IBM System/360 and System/370 Bibliography shows CPCS documentation as newly added in the August 1972 edition.[8] The goal was to create a database of all MICR entries and handle pass control. It was designed to work with OS/360 in 256KB of core storage.[9] It was IBM Product 5734-F11.[10]
CPCS is run on IBM System/360 and later IBM mainframe computers and receives the data from the document processor and can store information from the cheques, including the bank number, branch number, account number and the amount the check was written for, as well as internal transaction codes.[11]
IBM withdrew CPCS from marketing on Nov 29, 2021.[12]
^"RCA, IBM report new developments in software packages". Archived from the original on February 2, 2017. Presents an update on developments in computer software packages for banks as of May 1971. Acquisition of the online customer information file system used at the Fidelity Bank of Philadelphia, Pennsylvania by RCA company; Details on the CPCS computer program developed by IBM company for check processing.{{cite magazine}}: Cite magazine requires |magazine= (help)
^"ImagePlus speeds check handling". Network World. Vol. 7, no. 12. March 19, 1990. p. 51. The HPTS system is designed to be used with IBM 3890/XP mainframes supporting IBM's Check-Processing Control System (CPCS) and running MVS/ESA
^Devlin, Joe. "Banking Special Issue: Proof of Deposit - Case Study". Armadillo Associates, Inc. This allows Wachovia to process these checks quickly and accurately using its high speed IBM 3890/XP reader/sorters, running IBM's Check Processing Control System (CPCS)...
