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Toshiba Qosmio G10 User Manual

Page 226

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User’s Manual

Glossary-9

Glossary

IrDA 1.1: An industry standard that enables cableless infrared serial data

transfer at speeds of up to 4 Mbps.

J

jumper: A small clip or wire that allows you to change the hardware

characteristics by electrically connecting two points of a circuit.

K

K: Taken from the Greek word kilo, meaning 1000; often used as

equivalent to 1024, or 2 raised to the 10th power. See also byte and
kilobyte.

KB: See kilobyte.

keyboard: An input device containing switches that are activated by

manually pressing marked keys. Each keystroke activates a switch
that transmits a specific code to the computer. For each key, the
transmitted code is, in turn, representative of the (ASCII) character
marked on the key.

kilobyte (KB): A unit of data storage equal to 1024 bytes. See also byte

and megabyte.

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 large scale integration.

M

main board: See motherboard.

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.