Printronix T5000R Series Programmer's Reference Manual page 89

port A channel used for receiving data from or transmitting
data to one or more external devices.
presentation space
A space where data can be generated before it is
mapped onto the logical page. The presentation space
uses an X-axis and Y-axis to specify addresses.
protocol A set of rules or conventions governing the exchange of
information between computer systems. For computer
printers, a protocol is the coding convention used to
convey and print data. A printer protocol includes
character codes, printer function codes, and machine-to-
machine communication codes.
Acronym for random-access memory. Also called "main
RAM
memory" or "working memory." RAM is the active
memory of a printer, into which programs are loaded.
This memory can be read from or written to at any time-
hence the term "random-access." RAM is also termed
"volatile" because whatever is in RAM is lost when power
is turned off or interrupted.
read To retrieve data from memory (RAM, NVRAM) or mass
storage (hard disk, floppy diskette, etc.).
reset To turn off, deactivate, disable, or return to a previously
determined state.
resolution A measure expressing the number of units in a given
range used to create an image. In printing, this is
expressed as the number of dots per inch (dpi)
horizontally and vertically.
ROM Acronym for read-only memory. Programs, instructions,
and routines permanently stored in the printer. ROM is
not lost when power is turned off and cannot be written
to, hence the term "read-only." ROM-resident fonts are
fonts permanently stored in a printer and available at any
time.
set To turn on, activate, invoke, or enable.
string Two or more bytes of data or code treated as a unit.
twinax Twinaxial. A type of cable with two wires surrounded by
insulation and a braided shield.
type style Refers to either the upright or italic character style in a
specific font family. Roman is upright, italic is slanted.
typeface A descriptive name or brand name that identifies a
particular design of type. Also called type family.
weight See character weight.
write To place data in memory (RAM, NVRAM).
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