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Page 13-9GLOSSARY
NL New line.
Normal operating mode The ALLY PLUS mode in which host
data may be accepted.
Null 00h. Output by the ALLY PLUS as a
space.
Null line A line in the data stream containing
only null characters.
O
One-trigger A form of pseudo transparency that
uses a single trigger character followed
by a count byte that indicates the length
of the escape sequence.
Option An ALLY PLUS configuration
parameter for which the user can make
a choice.
Output Data transferred from a computers
internal storage to an output device.
Output device A unit that takes data output from a
computer and presents it in the form
desired by the user.
Overstrike A DisplayWrite 370 function in which
two characters may be printed in the
same presentation position.
P
PA1 Program attention key 1.
PA2 Program attention key 2.
Page control The method by which page boundaries
(margins) are determined. Page control
may be done either by the host
application or by the ALLY PLUS.
Parallel interface 8 bits of a byte are transmitted
simultaneously through 8 parallel wires.
Parity A bit added to a data word that is used
for error checking. Simple parity can be
either odd or even.