User's Manual
Glossary 9
Version
1
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Satellite Pro 4200/4300 User's Manual – 4200_UK.doc – ENGLISH – Printed on 27/01/00 as
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L
level 2 cache:
See
cache.
Light Emitting Diode (LED):
A semiconductor device that emits light
when a current is applied.
Liquid Crystal Display (LCD):
Liquid crystal sealed between two sheets
of 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.
LSI:
Large Scale Integration. 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 the large scale integration.
M
main board:
See motherboard.
maths co-processor:
A circuit built into the processor that is dedicated to
intensive math calculations.
MDA:
Monochrome Display Adaptor. A video display protocol defined by
the IBM Monochrome Display Adaptor and its associated circuitry
for direct drive TTL displays that supports a monochrome 720x350
text mode.
megabyte (MB):
A unit of data storage equal to 1024 kilobytes.
See also
kilobyte.
megahertz:
A unit of wave frequency that equals 1 million cycles per
second.
See also
hertz.
menu:
A software interface that displays a list of options on the screen.
Also called a screen.
microprocessor:
A hardware component contained in a single integrated
circuit that carries out instructions. Also called the central
processing unit (CPU), one of the main parts of the computer.
million byte:
A unit of data storage equal to 1,000,000 bytes.
MMX:
Refers to microprocessors with additional instructions beyond the
x86 standard. The instructions were developed on the basis of
multimedia code requirements and thus improve the performance
of multimedia applications.
