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164 Glossary
Express Service Code — A numeric code located on a sticker on your Dell™
computer. Use the Express Service Code when contacting Dell for assistance. Express
Service Code service may not be available in some countries.
extended display mode — A display setting that allows you to use a second monitor as
an extension of your display. Also referred to as dual display mode.
extended PC Card — A PC Card that extends beyond the edge of the PC Card slot
when installed.
F
Fahrenheit — A temperature measurement scale where 32° is the freezing point and
212° is the boiling point of water.
FCC — Federal Communications Commission — A U.S. agency responsible for
enforcing communications-related regulations that state how much radiation
computers and other electronic equipment can emit.
floppy — An electromagnetic form of storage media. Also known as a floppy diskette or
a floppy disk.
floppy drive — A disk drive that can read and write to floppy disks.
folder — A term used to describe space on a disk or drive where files are organized and
grouped. Files in a folder can be viewed and ordered in various ways, such as
alphabetically, by date, and by size.
format — The process that prepares a drive or disk for file storage. When a drive or
disk is formatted, the existing information on it is lost.
FSB — front side bus — The data path and physical interface between the processor
and RAM.
FTP — file transfer protocol — A standard Internet protocol used to exchange files
between computers connected to the Internet.
G
G — gravity — A measurement of weight and force.
GB — gigabyte — A measurement of data storage that equals 1024 MB
(1,073,741,824 bytes). When used to refer to hard drive storage, the term is often
rounded to 1,000,000,000 bytes.
GHz — gigahertz — A measurement of frequency that equals one thousand million
Hz, or one thousand MHz. The speeds for computer processors, buses, and interfaces
are often measured in GHz.
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