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Parallel - a communications interface that sends or receives 8 bits of
information plus control signals at a time.
Parity - a bit in a serial information that allows a computer and printer to
automatically check for errors in transmission.
Pitch - the width of a typeface measured in characters per inch.
Point - the height of a type font, measured in points, or l/72 of an inch.
Portrait-printing on paper across its narrower dimension, such as a letter
on paper that is 8.5 in. wide and 11 in. high; portrait pictures are
usually taller than they are wide.
Proportional type - a typeface in which some letters take up more room
on a printed line than others, such as W taking more space than I. The
spacing of the letters is also intended to enhance the esthetic quality
of the printed page.
RAM - Random Access Memory, or memory that can be used to store
information temporarily, such as text or printing configurations.
RAM-stored information is erased when the power is turned off.
ROM-Read Only Memory, or memory in which information can be stored
permanently, whether the power is on or off.
RS-232 - a wiring configuration for sending and receiving serial transmis-
sions, including data and acknowledgments between sending and
receiving equipment (“handshaking”).
Serial - a communications interface that sends or receives 1 bit of
information at a time at a specified baud rate.
Stop Bit - 1 or 2 bits used by the computer for the timing of a transmission
of information.
Stroke weight-the intensity of a printed character, such as light, medium,
or bold. Normal printing is medium weight.
Symbol Set-the entire list of ASCII letters, numbers, and symbols used
with a particular language, such as English or Spanish.
VMI (Vertical Motion Index) - refers to line spacing, the smallest incre-
ment that can be made in the vertical or y axis.
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