Toshiba Satellite 2670 series, User Manual

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Glossary 8 User's Manual
Satellite 2670/2710 User's Manual – 2670_UK.doc – ENGLISH – Printed on 19/01/00 as
IM_267UK
input: The data or instructions you provide to a computer, communication
device or other peripheral device from the keyboard or external or
internal storage devices. The data sent (or output) by the sending
computer is input for the receiving computer.
instruction: Statements or commands that specify how to perform a
particular task.
interface: 1) Hardware and/or software components of a system used
specifically to connect one system or device to another.
2) To physically connect one system or device to another to
exchange information. 3) The point of contact between user, the
computer, and the program, for example, the keyboard or a menu.
interrupt request:
A signal that gives a component access to the processor.
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 the large scale integration.