The sample Terminal Control Table (TCT) defines the remote systems to CICS. Each remote system is specified using a DFHTCT definition, which includes both the name by which CICS knows the system (the SYSIDNT field), and the name by which VTAM knows the system (the NETNAME field).

The primary function of the Terminal Control Table (TCT) is to register all terminals, which are under CICS' control. The CICS Terminal Control Program (TCP) uses this table for identifying the terminals and performing all input/output operations against these terminals.

TCT entry is defined using the assembler macro DFHTCT. Some of the options available are terminal-id (TRMIDNT), terminal type (TRMTYPE) and FEATURE, which indicates the terminal services CICS offers.

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