Glossary
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link.
LCD (Liquid Crystal Display )
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A display technology that uses rod-shaped molecules
(liquid crystals) that flow like liquid and bend light.
LED (Light Emitting Diode)
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An electronic device that lights up when electricity is passed
through it. The indicator lights on the computer are LEDs.
load
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To copy a program from some source into memory for execution.
Lithium-Ion battery
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A type of battery which is ideal for notebook computers because of
its light weight and high energy density. The battery does not use poisonous metals.
M
MB (Megabyte)
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1,048,576 bytes, 1024 KB.
memory
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Area in the computer where information is stored on chips, an example is RAM.
MHz
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One MHz represents one million cycles per second. The speed of microprocessors,
called the clock speed, is measured in megahertz.
MMX
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A type of microprocessor that can handle many common multimedia operation that are
normally handled by a seperate sound or video card.
mode
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An operational state that a system has been switched to.
modem (modulate-demodulate)
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A device that adapts a computer to a telephone line by
converting the computer’s digital pulses into audio frequencies for the telephone when
sending. And the reverse when receiving a signal from the telephone line.
module
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Referring to hardware, a module is a self-contained component.
N
NiMH battery
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Batteries which are common in notebook computers and contain Nickel-
Metal Hydride.
P
parallel port
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A socket on a computer used to connect a printer or other parallel device
via the computer’s parallel interface.
partition
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A reserved part of disk or memory that is set aside for some purpose.
PCMCIA Card
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A credit-card sized, removable module for portable computers standard-
ized by PCMCIA. Also known as PC Cards.
Plug and Play
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The ability to add a new component and have it work without having to
perform any technical analysis or procedure.
peripheral
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Any external device attached to a computer, such as a printer.
