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260 Glossary
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ESD
Electrostatic discharge. A rapid discharge of static
electricity that can damage computer chips and
devices.
Ethernet
A network communications protocol. See also
Network Adapter.
Expansion Card
An electronic circuit board that installs in an
expansion slot on the computer’s system board,
expanding the capabilities of the computer.
Examples of expansion cards include, video, modem,
and sound cards.
Expansion Slot
A connector or "slot" on the computer’s system board
that allows for the insertion of an expansion card,
connecting it to the system’s bus.
Express Service Code
A numeric code located on a sticker on your Dell™
computer. This code is a mathematical conversion of
the computer’s Service Tag Number into a purely
numeric format allowing for easy entry into Dell's
automated call-routing system. Enter the Express
Service Code, using a touch-tone telephone, when
contacting Dell for assistance. For more information,
see http://support.dell.com.
F
Fahrenheit. A measurement of temperature that
equals the conversion formula (9 / 5) * Tc + 32,
where Tc equals temperature in C.
FCC
Federal Communications Commission. A U.S. agency
responsible for enforcing communications-related
regulations on how much radiation computers and
other electronic equipment can emit.
FSB
Front side bus. The data path and physical interface
between the microprocessor and RAM.
ft
Foot (feet). A measurement of length that equals 12
inches.
FTP
File Transfer Protocol. A standard Internet protocol
to exchange files between computers on the Internet.
Like http, which transfers HTML pages and related
files, FTP is a protocol that uses the Internet's TCP/IP
protocols.
G
Gravities. A measurement of weight and force.
g
Gram. A measurement of mass and weight.
GB
Gigabyte. A measurement of data or drive storage
capacity that equals 1024 MB (1,073,741,824 bytes).
GHz
Gigahertz. A measurement of frequency that equals
one thousand million Hz, or one thousand MHz.
GUI
Graphical user interface. Software that interacts with
the user by means of menus, windows, and icons.
Most applications that operate on the Microsoft
Windows OS are GUIs.
Hard-Drive Controller
A computer component that provides an interface
with an individual hard drive. With the introduction
of IDE, the controller was produced as a chip
integrated into the hard-drive housing, whereas it was
previously a dedicated expansion card. See also
Controller.