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Portégé M200 9
Portégé M200 Version
1
Last Saved on 03/11/2003 12:04
ENGLISH using Euro_M.dot –– Printed on 03/11/2003 as IM_M20EN
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 darkens the liquid crystal to provide contrast to
lighted portions of the display.
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 coprocessor: 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 (GB): 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.
mode: A method of operation, for example, the boot mode or the resume
mode.
modem: Derived from modulator/demodulator, a device that converts
(modulates) digital data for transmission over telephone lines and
then converts modulated data (demodulates) to digital format
where received.
monitor: A device that uses rows and columns of pixels to display
alphanumeric characters or graphic images. See CRT.