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CSS Laboratories
Glossary of Terms
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40
ISA
Industry Standard Architecture. A bus design that allows components to be added as
cards plugged into computer expansion slots.
Jumper
A pair of prongs that are electrical contact points set into a computer motherboard or
an adapter card. A small plastic plug placed on the prongs completes a contact in
order to alter an aspect of the computer configuration. A group of jumpers is called a
jumper block
.
LAN
Local Area Network. A group of computers and other devices dispersed over a
relatively limited area and connected by a communications link that enables any
device to interact with any other on the network.
LED
Light Emitting Diode. A device that emits light when electricity passes through it.
LUN
Stands for Logical device or drive Unit Number. A device named by the logic of a
software system, regardless of its physical relationship to the system.
Menu
A list of options from which a user can make a selection in order to perform a
desired action.
MIS
Management Information Systems. Usually a department within a company that is
responsible for running and repairing computers and software.
Motherboard
The main circuit board of a computer to which most other devices connect. A single
board computer combined with a passive backplane form one complete motherboard
with extended processing, power and device connection capabilities.
Parallel
The transmission of data eight or more at a time; a type of device, such as a “parallel
port” that sends or receives data in this fashion. See also:
Serial
.
Passive Backplane
See
Backplane.
