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194 Glossary
F
Fahrenheit — A temperature measurement scale where 32° is the freezing point and
212° is the boiling point of water.
FBD — fully-buffered DIMM — A DIMM with DDR2 DRAM chips and an
Advanced Memory Buffer (AMB) that speeds communication between the DDR2
SDRAM chips and the system.
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.
fingerprint reader — A strip sensor that uses your unique fingerprint to authenticate
your user identity to help secure your computer.
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.
book.book Page 194 Friday, April 4, 2008 12:10 PM