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Glossary
hot-pluggable drives: Drives that you can install or remove without using
screws or cables and without powering down the server.
hub: A central connecting device in a network that joins communications
lines together in a star configuration. A switching hub also routes
messages and packets among the computers connected to the
network.
hypermedia: A method of providing multiple connected pathways
through a body of information, allowing users to jump easily from a
topic to related or supplementary material, which may be text,
graphics, audio, images, or video.
HyperText Markup Language (HTML): A special coding scheme used to
prepare text and graphics for access over the World Wide Web.
I
icon: A small picture that represents a function, file, or program.
Industry Standard Architecture (ISA): An expansion bus design that
provides a 16-bit data path with 16-bit and 8-bit slots. A 16-bit
expansion board can use two adjacent 8-bit slots. See also EISA.
infrared port: A port that allows data to be transferred by infrared signals
instead of a cable. It works on the same principle as a remote control
for a television set.
input: Information received by a computer from a storage device such as
a disk, or an input device such as the keyboard.
input/output (I/O): Input and output are two of the three functions that
computers perform (the other is processing). Input/Output describes
the interrelated tasks of providing information to the computer and
providing the results of processing to users. I/O devices include
keyboards (input) and printers (output). A disk drive is both an input
and an output device, since it can both provide information to the
computer and receive information from the computer.
instruction: A statement in a computer program that performs a
particular function or task.
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