Toshiba 5000 Series User Manual page 215

microprocessor
microprocessor: A hardware compo-
nent contained in a single integrated
circuit that carries out instructions.
Also called the central processing unit
(CPU), one of the main parts of the
computer.
mode: A method of operation, for
example, the boot mode or the resume
mode.
monitor: A device that uses rows and
columns of pixels to display alphanu-
meric characters or graphic images.
See also CRT.
motherboard: A name sometimes
used to refer to the main printed circuit
board in processing equipment. It
usually contains integrated circuits that
perform the processor's basic func-
tions and provides connectors for
adding other boards that perform
special functions. Sometimes called a
main board.
N
non-system disk: A formatted diskette
(floppy disk) you can use to store
programs and data but you cannot use
to start the computer. See system disk.
nonvolatile memory: Memory, usually
read-only (ROM), that is capable of
permanently storing information.
Turning the computer's power off
does not alter data stored in nonvola-
tile memory.
Glossary-10
numeric keypad overlay: A feature
that allows you to use certain keys on
the keyboard to perform numeric entry,
or to control cursor and page move-
ment.
O
OCR: Optical Character Recognition
(reader). A technique or device that
uses laser or visible light to identify
characters and input them into a
storage device.
online state: A functional state of a
peripheral device when it is ready to
receive or transmit data.
operating system: A group of
programs that controls the basic
operation of a computer. Operating
system functions include interpreting
programs, creating data files, and
controlling the transmission and
receipt (input/output) of data to and
from memory and peripheral devices.
output: The results of a computer
operation. Output commonly indicates
data 1) printed on paper, 2) displayed
at a terminal, 3) sent through the serial
port of internal modem, or 4) stored
on some magnetic media.