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Glossary–7
lpi
Abbrev. for lines per inch. A measurement indicating the vertical
spacing between successive lines of text. For example, 8 lpi
means eight lines of text for every vertical inch.
lpm
Abbrev. for lines per minute. A measurement of the print speed of
a line printer printing in text print mode.
M
monospaced
See font, monospaced.
N
NLQ
Abbrev. for near letter quality font.
O
OCR
Abbrev. for optical character recognition. A process by which a
machine can “read” characters printed in a special standardized
font. Data are read by a photoelectric optical scanner and can be
recorded on magnetic tape or disk. OCR-A and OCR-B are two
widely used OCR fonts.
P
parity (check)
Parity checking is the addition of non-data bits to data, resulting
in the number of bits that are set to a “1” being either always even
or always odd. Parity is used to detect data errors.
PCBA
Abbrev. for printed circuit board assembly.
pica
A name indicating a monospaced font with a pitch of 10 cpi (and
usually 12 points in height). Pica is also used in typography as a
unit of measurement equal to 1/6 inch
.
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