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User’s Manual Glossary-7
Glossary
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.
F
fast infrared: An industry standard that enables cableless infrared serial
data transfer at speeds of up to 4 Mbps.
file: A collection of related information; a file can contain data, programs,
or both.
fingerprint sensor: The fingerprint sensor compares and analyzes the
unique characteristics in a fingerprint.
firmware: A set of instructions built into the hardware which controls and
directs a microprocessor’s activities.