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User’s Manual Glossary-6
Glossary
display: A CRT, LCD, or other image producing device used to view
computer output.
documentation: The set of manuals and/or other instructions written for
the users of a computer system or application. Computer system
documentation typically includes procedural and tutorial information
as well as system functions.
double click: To press and release the pointing device's primary button
rapidly twice without moving the pointing device. In the Windows
operating system, this refers to the pointing device's left button,
unless otherwise stated.
driver: A software program, generally part of the operating system, that
controls a specific piece of hardware (frequently a peripheral device
such as a printer or mouse).
DVD: An individual digital versatile (or video) disc. See also DVD-ROM.
DVD-R (+R, -R): A Digital Versatile Disc-Recordable disk can be written
once and read many times. The DVD-R drive uses a laser to read
data from the disc.
DVD-RAM: A Digital Versatile Disc-Random Access Memory is a high-
capacity, high performance disc that lets you store large volumes of
data. The DVD-ROM drive uses a laser to read data from the disc.
DVD-ROM: A Digital Versatile Disc-Read Only Memory is a high capacity,
high performance disc suitable for play back of video and other
high-density files. The DVD-ROM drive uses a laser to read data
from the disc.
DVD-RW (+RW, -RW): A Digital Versatile Disc-ReWritable disc can be
rewritten many times.
E
echo: To send back a reflection of the transmitted data to the sending
device. You can display the information on the screen, or output it to
the printer, or both. When a computer receives back data it
transmitted to a CRT (or other peripheral device) and then transmits
the data to printer, the printer is said to echo the CRT.
enable: To turn on a computer option. See also disable.
erase: See delete.
escape: 1) A code (ASCII code 27), signaling the computer that what
follows are commands; used with peripheral devices such as
printers and modems.
2) A means of aborting the task currently in progress.
escape guard time: A time before and after an escape code is sent to the
modem which distinguishes between escapes that are part of the
transmitted data, and escapes that are intended as a command to
the modem.
execute: To interpret and execute an instruction.