Dell Latitude ATG D620 User Manual page 199

Glossary: Dell Latitude ATG D620 User's Guide
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.
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.
HTTP — hypertext transfer protocol — A protocol for exchanging files between computers connected
to the Internet.
Hyper-Threading — Hyper-Threading is an Intel technology that can enhance overall computer
performance by allowing one physical processor to function as two logical processors, capable of
performing certain tasks simultaneously.
Hz — hertz — A unit of frequency measurement that equals 1 cycle per second. Computers and
electronic devices are often measured in kilohertz (kHz), megahertz (MHz), gigahertz (GHz), or
terahertz (THz).
I
IC — integrated circuit — A semiconductor wafer, or chip, on which thousands or millions of tiny
electronic components are fabricated for use in computer, audio, and video equipment.
IDE — integrated device electronics — An interface for mass storage devices in which the controller is
file:///H|/My%20Documents/Cellular/User%20Guides/Notebooks/D620%20ATG/glossary.htm (7 of 17)4/13/2007 4:36:53 PM