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I/O: Input/output. Refers to acceptance and transfer of data to and from a
I/O devices: Equipment used to communicate with the computer and
IrDA 1.1: An industry standard that enables cableless infrared serial data
J
jumper: A small clip or wire that allows you to change the hardware
K
K: Taken from the Greek word kilo, meaning 1000; often used as
KB: See kilobyte.
keyboard: An input device containing switches that are activated by
kilobyte (KB): A unit of data storage equal to 1024 bytes. See also byte
L
level 2 cache: See cache.
Light Emitting Diode (LED): A semiconductor device that emits light
Liquid Crystal Display (LCD): Liquid crystal sealed between two sheets
LSI: Large Scale Integration. 1) A technology that allows the inclusion of
User's Manual
computer.
transfer data to and from it.
transfer at speeds of up to 4 Mbps.
characteristics by electrically connecting two points of a circuit.
equivalent to 1024, or 2 raised to the 10th power. See also byte and
kilobyte.
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.
and megabyte.
when a current is applied.
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.
up to 100,000 simple logic gates on a single chip.
2) An integrated circuit that uses large scale integration.
Glossary
Glossary-10
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