Toshiba PORTEGE R400 User Manual page 190

Glossary
L
level 2 cache: See cache.
Light Emitting Diode (LED): A semiconductor device that emits light when
Liquid Crystal Display (LCD): Liquid crystal sealed between two sheets of
LSI: Large Scale Integration.
M
main board: See motherboard.
megabyte (MB): A unit of data storage equal to 1024 kilobytes. See also
megahertz: A unit of wave frequency that equals 1 million cycles per
menu: A software interface that displays a list of options on the screen.
microprocessor: A hardware component contained in a single integrated
mode: A method of operation, for example, the Boot Mode, Sleep Mode or
monitor: A device that uses rows and columns of pixels to display
motherboard: A name sometimes used to refer to the main printed circuit
MP3: An audio compression standard that enables high-quality
Glossary-10
a current is applied.
glass coated with transparent conducting material. The viewing-side
coating is etched into character forming segments with leads that
extend to the edge of the glass. Applying a voltage between the
glass sheets alters the brightness of the liquid crystal.
1) A technology that allows the inclusion of up to 100,000 simple
logic gates on a single chip.
2) An integrated circuit that uses large scale integration.
kilobyte.
second. See also hertz.
Also called a screen.
circuit that carries out instructions. Also called the central
processing unit (CPU), one of the main parts of the computer.
the Hibernation Mode.
alphanumeric characters or graphic images. See also CRT.
board in processing equipment. It usually contains integrated
circuits that perform the processor's basic functions and provides
connectors for adding other boards that perform special functions.
Sometimes called a main board.
transmission and real-time playback of sound files.
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