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I
icon: A small graphic image displayed on the screen or in the indicator
input: The data or instructions you provide to a computer, communication
instruction: Statements or commands that specify how to perform a
interface: 1) Hardware and/or software components of a system used
interrupt request: A signal that gives a component access to the
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
K
K: Taken from the Greek word kilo, meaning 1000; often used as equivalent
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
L1 cache: Level one cache. Memory cache built into the processor to help
L2 cache: Memory cache installed on the motherboard to help improve
User's Manual
panel. In Windows, an icon represents an object that the user can
manipulate.
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.
particular task.
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.
processor.
computer.
transfer data to and from it.
transfer at speeds of up to 4 Mbps.
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.
improve processing speed. See also cache memory, L2 cache.
processing speed. It is slower than L1 cache and faster than main
memory. See also cache memory, L1 cache.
L550/L550D/L555/L555D
Glossary-9
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