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Toshiba Portege R400 User Manual

Page 187

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User’s Manual

Glossary-7

Glossary

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
retransmits the data to printer, the printer is said to echo the CRT.

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.

Extended Capability Port: An industry standard that provides a data

buffer, switchable forward and reverse data transmission, and run
length encoding (RLE) support.

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.

floppy diskette: A removable disk that stores magnetically encoded data.