GLOSSARY
XEROX 4635 LASER PRINTING SYSTEM INSTALLATION PLANNING GUIDE
GLOSSARY-5
CPU
central processing unit. Interprets and executes instructions,
performs all operations and calculations, and controls input and
output units and auxiliary attachments.
data
1. In general, facts, numbers, letters, symbols, and so on, which
can be processed or produced by a computer. 2. In data
processing, the source data or raw data entered for processing,
as opposed to the results obtained by processing.
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 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 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.
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.
