Terminal Management

DC terminal management functions enable your program to transfer data to and from the terminal. You can use one of the following modes to transfer data:

Mapping Mode transfers an entire screen of data on a field-by-field basis. Mapping mode can be used only with 3270-type devices and glass TTYs that have established device-independence tables.
Line mode transfers data one line at a time.
Basic mode transfers a variable amount of data, as specified in the program.

The table below compares the three types of terminal management.

Mode	Data transfer	Device-control characters	Line-control characters	Terminal devices
Mapping	Field-by-field	DC-built	DC-built	3270-type and glass TTYs
Line	One line at a time	DC-built	DC-built	Device independent
Basic	Data length specified in the program	Program	DC-built	Device dependent

For more information about basic mode, see Basic Mode.

This section contains the following topics:

Mapping Mode

Using Pageable Maps

Line Mode