CICS stands for Customer Information Control System. CICS was developed in 1968 by IBM in United States. CICS allow users to develop and execute online application in an MVS environment. CICS has become the most commonly used server for Internet applications
CICS is a transaction processing system which is also called as Online Transaction Processing (OLTP) Software. CICS is a data communication system that can support a network of many hundreds of terminals.