Xerox 155 - Manual (Page 148)

GLOSSARY
GLOSSARY-4 Installation Planning Guide
communication line Telecommunication line connecting devices at one
location with devices at other locations in order to
transmit and receive information.
communication link Physical means (i.e., data link) connecting one location
to another to transmit and receive information.
compatibility Characteristic of computer equipment permitting one
device to use the same information or programs as
another device without conversion or code modification.
compile To translate instructions written in high-level language
into machine language for execution by a system.
console Functional unit containing devices used by an operator to
communicate with a printer. It may consist of a display,
keyboard, and certain switches or other controls.
control program An operating system program that manages job flow,
input/output processing, and other overall system
functions and resources.
controller Component of the DocuPrint printing system that
manages the spooling and processing of print jobs.
database Information to meet specific processing and retrieval
needs. Generally applies to integrated file of data,
arranged for access by many subsystems.
data communications Transmission and reception of encoded information over
telecommunication lines.
data file Collection of related data records organized in a specific
manner so that each record is similarly structured, e.g., a
payroll file set up with one record for each employee, last
name first, indicating the rate of pay and all deductions.
data rate In data communications, the rate at which a channel
carries data, measured in bps (bits per second).
data storage Preservation of data on various media (e.g., tape, disks,
magnetic bubble memory, etc.).
data stream Format of data passed from one device to another.
data transmission Transmission of coded data over telephone or other
telecommunication lines.
DCIM Data Control Interface Module. The video interface
hardware which resides in the SUN workstation (the
DCIM replaces the XEPI board).
decomposer Controller task that translates print data from the PDL
command file into a bitmap image of the page to be
printed.
default Predefined value the system uses when another value is
not provided.