154
Glossary
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D E L L C O N F I D E N T I A L – P R E L I M I N A RY 1 / 2 5 /0 7 – FO R P R O O F O N LY
connecting it to the system bus.
ExpressCard
— A removable I/O card adhering to the
PCMCIA standard. Modems and network adapters are
common types of ExpressCards. ExpressCards support
both the PCI Express and USB 2.0 standard.
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.
graphics mode
— A video mode that can be defined as
x
horizontal pixels by
y
vertical pixels by
z
colors. Graphics
modes can display an unlimited variety of shapes and
fonts.
GUI
— graphical user interface — Software that interacts
with the user by means of menus, windows, and icons.
Most programs that operate on the Windows operating
systems are GUIs.
H
hard drive
— A drive that reads and writes data on a hard
disk. The terms hard drive and hard disk are often used
interchangeably.
heat sink
— A metal plate on some processors that helps
dissipate heat.
help file
— A file that contains descriptive or
instructional information about a product. Some help
files are associated with a particular program, such as
Help
in Microsoft Word. Other help files function as stand-
alone reference sources. Help files typically have a
filename extension of
.hlp
or
.chm
.
hibernate mode
— A power management mode that saves
everything in memory to a reserved space on the hard
drive and then turns off the computer. When you restart
the computer, the memory information that was saved to
the hard drive is automatically restored.
HTML
— hypertext markup language — A set of codes
inserted into an Internet web page intended for display on
an Internet browser.
HTTP
— hypertext transfer protocol — A protocol for
