Toshiba L450 User Manual page 176

L450/L450D
megahertz: A unit of wave frequency that equals 1 million cycles per
memory: Typically refers to the computer's main memory, where programs
menu: A software interface that displays a list of options on the screen.
microprocessor: A hardware component contained in a single integrated
mode: A method of operation, for example, the Shut Down Mode, Sleep
modem: Derived from modulator/demodulator, a device that converts
monitor: A device that uses rows and columns of pixels to display
motherboard: A name sometimes used to refer to the main printed circuit
MP3: An audio compression standard that enables high-quality
N
network: A collection of computers and associated devices that are
non-system disk: A disk for storing programs and data that cannot be
nonvolatile memory: Memory, usually read-only (ROM), that is capable of
numeric keypad overlay: A feature that allows you to use certain keys on
Glossary-10
second. See also hertz.
are run and data is temporarily stored and processed.
Memory can be volatile and hold data temporarily, such as RAM,
or it can be nonvolatile and hold data permanently, such as ROM.
A computer's main memory is RAM. See RAM, ROM.
Also called a screen.
circuit that carries out instructions. Also called the central
processing unit (CPU), one of the main parts of the computer.
Mode or the Hibernation Mode.
(modulates) digital data for transmission over telephone lines and
then converts modulated data (demodulates) to digital format where
received.
alphanumeric characters or graphic images. See also CRT.
board in processing equipment. It usually contains integrated
circuits that perform the processor's basic functions and provides
connectors for adding other boards that perform special functions.
transmission and real-time playback of sound files.
connected by communications facilities. A network allows you to
share data and peripheral devices, such as printers, with other
users and to exchange electronic mail.
used to start the computer. Compare system disk.
permanently storing information. Turning the computer's power off
does not alter data stored in nonvolatile memory.
the keyboard to perform numeric entry, or to control cursor and page
movement.
User's Manual