CICS RPC Glossary

CICS Stands for Customer Information Control System. An IBM-licensed teleprocessing sub-system that accepts on-line input from terminals, executes programs to fulfill user requests and manages buffers, storage and file input/output.

CICS RPC CICS RPC stand for Customer Information Control System Remote Procedure Call.

COBOL Stands for Common Business Oriented Language used primarily on legacy applications.

COMMAREA (DFHCOMMAREA) Stands for communication area. It is a command level facility used to transfer information between two programs within a transaction or between two transactions from the same terminal.

Copybook A record structure consisting of individually defined COBOL data descriptors as it is defined in a program or copybook (copybooks can be contained within other copybooks). A copybook may also be reused by other programs and copybooks.

EBCDIC Collating sequence used by IBM mainframes. In the EBCDIC collating sequence, lowercase letters appear before uppercase letters and numbers appear last.

Endian Term used to describe the order in which a sequence of bytes are stored in the computer memory. Big-endian is an order in which the most significant value in the sequence is stored first at the lowest storage address. Little-endian is an order where the least significant value in the sequence is stored first.

Gateway Parameters There are two parameters to fine tune connections: Initworker and Initconnections. Initworker represents the initialized number of worker threads. Initconnections represents the initialized number of connections.

Native Environment Pane A pane in the CICS RPC Component Editor that simulates an actual CICS environment when you issue a query.