9/ Routing Input/Output
Model III lets you route
110
from one device to another. This gives your programs
more versatility.
Forexample, suppose you have a program that outputs to the Video Display. Now
supposeyou want all display output to go to the printer. You can accomplish this
withoutchanging the program at all, using the route capability. The source device
(in ourexample, the display) will then be logically equivalent to the destination
device (printer) until you re-initialize the
lIO drivers with
$INITIO
(described later).
Here are the devices that may be routed:
Device System Abbreviation
Keyboard
KI
Display
DO
Printer
PR
RS-232-C
Send
RO
Receive
RI
9/1
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