Filter
Top Products
GLOSSARY
XEROX 4890 HIGHLIGHT COLOR LPS INSTALLATION PLANNING REFERENCE GLOSSARY-17
protocol Formal set of conventions governing format of data and control
of information exchange between two communication devices.
proportional font Font containing characters that vary in width.
proportional spacing Text where each alphanumeric character is given a weighted
amount of space. Such output has print-like appearance.
Proportional spacing allows more space for wide characters and
less space for narrow characters.
proportional type Characters that vary in width.
PSC Printer subsystem controller. Command and task that download
the printer and/or raster image processor (RIP) software if
selected.
query Request for data or other information, entered by an operator
while the system is processing.
queue Managed database of documents waiting to be processed.
RAM Random access memory.
raster data Binary data, usually consisting of dots arranged in scan lines,
according to the print order.
raster image processor See RIP.
rasterization The creation of a bitmap image on a page for printing.
read-only memory See ROM.
read/write head A small electromagnet that reads, writes, and erases data in the
form of magnetic dots on the surface of an external storage
medium, such as a magnetic disk.
real time To process transactions as they are entered into a system. User
and system interchange allow transactions to be processed and
the results returned to the user.
remote access Access to a central computer by terminals or devices
geographically separated from that computer.
RGB A printing industry standard color definition model where all
colors are defined in terms of values for the three additive
primary colors: red, green and blue. Refer to color definition
model.
ROM Solid-state memory for programs. It cannot be rewritten.