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Glossary
LCD
Liquid Crystal Display. A type of display which makes
images by controlling the orientation of crystals in a
crystalline liquid.
Lithium ion Battery
A type of rechargeable battery which has a high power-
time life for its size and is not subject to the memory
effect as Nickel Cadmium batteries.
LPT Port
Line Printer Port. A way of referring to parallel interface
ports. Historically line printers were the first and later
the most common device connected to parallel ports.
MB
Megabyte.
Megahertz
1,000,000 cycles per second.
Memory
A repository for data and applications which is readily
accessible to your LifeBook notebook CPU.
MHz
Megahertz.
MIDI
Musical Instrument Digital Interface. A standard
communication protocol for exchange of information
between computers and sound producers such
as synthesizers.
Modem
A contraction for MOdulator-DEModulator. The
equipment which connects a computer or other data
terminal to a communication line.
Monaural
A system using one channel to process sound from all
sources.
MPU-401
A standard for MIDI interfaces and connectors.
NTSC
National TV Standards Commission. The standard for
TV broadcast and reception for the USA.
Operating System
A group of control programs that convert application
commands, including driver programs, into the exact
form required by a specific brand and model of micro-
processor in order to produce the desired results from
that particular equipment.
Parallel Port
A connection to another device through which data is
transferred as a block of bits simultaneously with a wire
for each bit in the block and with other wires only for
control of the device not for transfer of data.
Partition
A block of space on a hard drive which is set aside and
made to appear to the operating system as if it were a
separate disk, and addressed by the operating system
accordingly.
PCMCIA
PCMCIA is a trademark of the Personal Computer
Memory Card International Association. The Personal
Computer Memory Card International Association is an
organization that sets standards for add-in cards for
personal computers.
Peripheral Device
A piece of equipment which performs a specific function
associated with but not integral to a computer.
Examples: a printer, a modem, a CD-ROM.
Pitch (keyboard)
The distance between the centers of the letter keys of a
keyboard.
Pixel
The smallest element of a display, a dot of color on your
display screen. The more pixels per area the clearer your
image will appear.
POST
Power On Self Test. A program which is part of the BIOS
which checks the configuration and operating condition
of your hardware whenever power is applied to your
LifeBook notebook. Status and error messages may be
displayed before the operating system is loaded. If the
self test detects failures that are so serious that operation
can not continue, the operating system will not be
loaded.
PPPoE
Point to Point Protocol over Ethernet.
A protocol for Ethernet, using a Point-to-Point Protocol
(PPP), which is used for connection on the phone line.
Program
An integrated set of coded commands to your
computers telling your hardware what to do and how
and when to do it.
RAM
Random Access Memory. A hardware component of
your LifeBook notebook that holds binary information
(both program and data) as long as it has the proper
power applied to it.
RAM Module
A printed circuit card with memory and associated
circuitry which allows the user to add additional
memory to the computer without special tools.
Reset
The act of reloading the operating system. A reset erases
all information stored in RAM.
B5FH-5971.book Page 103 Thursday, May 23, 2002 4:13 PM