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Appendix D, Glossary
Page 98
Brownout A temporary reduction in power, which can last from
seconds to hours. Brownouts are the most significant of
power problems. During periods of high demand, utility
companies sometimes cause a brownout intentionally to
provide minimal power to everyone.
Browser A client software program used to look at various kinds of
Internet resources.
Bug A computer technology term applied to a defect in a
software application or hardware. The term “bug” originated
on the Harvard University campus in 1945, when a moth
caused a circuit of a glass-enclosed computer to
malfunction. Today, the term “bug” is applied to both
hardware and software problems alike.
Cache A special, high-speed memory subsystem, pronounced
“cash,” in which frequently used data values are duplicated
for quick access. Cache memory is faster than
RAM .
CD-R A drive similar to a CD-ROM drive, but with the ability to
record data.
CD-ROM drive
An optical disk that can store up to 1 GB of data, which is
equal to the storage capacity of 700 floppy diskettes.
However, most CD-ROMs only store 650 MB of data.
CD-RW A drive similar to a CD-ROM drive, but with the ability to
record and rewrite data.
Client A software program used to contact and obtain data from a
server software program on another computer, often across
a great distance. A client program is designed to work with
one or more specific kinds of server programs. A Web
browser is a specific kind of client.
Connector A receptacle on the back of the system unit that allows an
external device to be connected.