9 Output Operations

Selecting Output Devices

Information output by Eloquence takes three forms--PRINT outputs, SYSTEM outputs, and PRINT ALL outputs. All output is automatically shown on the display screen after Eloquence is started. The display is called the default output device. Alternately, you may specify other devices to output each type of information by using the statements introduced here:

File Table Reset Conditions
Output Type Operations Affected Controlled By
PRINTPRINT, PRINT USINGPRINTER IS
Eloquence SYSTEMLIST, CAT, TRACE, FETCH, COMMAND "!OS cmd"SYSTEM PRINTER IS
PRINT ALLAll displayed informationPRINT ALL IS

Printer and Port Numbers Vs. Device Addresses

Each device connected to the computer responds to a unique address. The address is mapped to a number in a configuration file. For printers this number can be from -2 to 7 and from 11 to 99. For ports this number can be from 11 to 20. Three numbers are reserved, as shown in the following table; the table also shows what devices are associated with the reserved numbers. For more details on how to configure printer/ports, see the instructions in chapter 2.

Printer Number

Explanation

8
Display.
9
Null device (Bit Bucket) - all output data is ignored.
10
Local printer.

Eloquence Language Manual - 19 DEC 2002