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Xerox 4635 User Manual

Page 300

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GLOSSARY

XEROX 4635 LASER PRINTING SYSTEM MESSAGE GUIDE

GLOSSARY-7

data link

Physical means of connecting one location with another for
communication, such as the communications lines, modems, and
controls which transmit information between two or more
stations.

data processing

Operations carried out on data by means of algorithms and
programs to produce information or a specific result. The
rearrangement of data into a suitable form for further use.

data rate

In data communications, the rate at which a channel carries data,
measured in bits per second (bps).

data storage

Preservation of data on various media, for example, tape, disks,
magnetic bubble memory, and so on.

data transmission

Transmission of coded data over telephone or other
telecommunication lines.

debug

To detect and correct errors in a program.

decompose

To break down into component parts, such as when Interpress
breaks down a Font Interchange Standard (FIS) master to compile
font information.

default

Value assigned to a field by the system. Default fields may be
used for such items as document formats, menu selections, input
fields, font selection, and paper or image size. The default value
of a field may be changed.

descender

Portion of alphabetic character that extends below the baseline.
See also ascender, x height.

desktop

Basic display screen of the PC UI.

device

Any piece of hardware other than the central processing unit
(CPU).

digitize

To express or represent data in digital (binary) form so that it can
be processed electronically.

disk drive

Device that can read or write magnetic media.

display

Viewing device (monitor) that visually communicates system
warnings, status, and error messages and reflects operator
interaction with the system on a display.

DJDE

Dynamic Job Descriptor Entry. Command within an input data
stream used to modify the printing environment dynamically.

DMR

Command parameter that designates a Digital Equipment
Corporation host system.