Describe about few common tables in CICS and their usage.

Describe about few common tables in CICS and their usage.

- Program Control Table: List of various transaction identifiers are paired with corresponding programs are available in PCT.

- Program Processing Table: A set of program names and the maps are available in PPT.

- Terminal Control Table: It contains a list of terminals that are identified by CICS.

- Resource Control Table: DB2 plan name and the transaction identifier are contained in RCT.

- File Control Table: FCT contains a list of files that are to used with CICS. File control section is not needed as they are opened and closed by CICS.