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 containing hundreds of terminals.

– CICS File Handling

– CICS Error Handling

– CICS Map

– CICS BMS

– CICS Interface Block

– Temporary Storage

– CICSPlex (Intercommunication)

– Status Codes