Dell Latitude ATG D620 User Manual page 202

Glossary: Dell Latitude ATG D620 User's Guide
memory module — A small circuit board containing memory chips, which connects to the system
board.
MHz — megahertz — A measure of frequency that equals 1 million cycles per second. The speeds for
computer processors, buses, and interfaces are often measured in MHz.
modem — A device that allows your computer to communicate with other computers over analog
telephone lines. Three types of modems include: external, PC Card, and internal. You typically use
your modem to connect to the Internet and exchange e-mail.
module bay — See media bay.
ms — millisecond — A measure of time that equals one thousandth of a second. Access times of
storage devices are often measured in ms.
N
network adapter — A chip that provides network capabilities. A computer may include a network
adapter on its system board, or it may contain a PC Card with an adapter on it. A network adapter is
also referred to as a NIC (network interface controller).
NIC — See network adapter.
notification area — The section of the Windows taskbar that contains icons for providing quick access
to programs and computer functions, such as the clock, volume control, and print status. Also referred
to as system tray.
ns — nanosecond — A measure of time that equals one billionth of a second.
NVRAM — nonvolatile random access memory — A type of memory that stores data when the
computer is turned off or loses its external power source. NVRAM is used for maintaining computer
configuration information such as date, time, and other system setup options that you can set.
O
optical drive — A drive that uses optical technology to read or write data from CDs, DVDs, or DVD
+RWs. Example of optical drives include CD drives, DVD drives, CD-RW drives, and CD-RW/DVD
combo drives.
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