Toshiba Qosmio X500 User Manual page 197

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 that is capable of permanently storing
numeric keypad overlay: A feature that allows you to use certain keys on
O
OCR: Optical Character Recognition (reader). A technique or device that
online state: A functional state of a peripheral device when it is ready to
operating system: A group of programs that controls the basic operation
output: The results of a computer operation. Output commonly indicates
P
parallel: Processes that occur simultaneously. In communications, it
User's Manual
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.
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.
uses laser or visible light to identify characters and input them into a
storage device.
receive or transmit data.
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
device.
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.
means the transmission of more than one bit of information at a
time. On your computer, the parallel port provides a parallel
communications interface between the computer and an
appropriate device. Compare serial. parity:
1) The symmetrical relationship between two parameter values
(integers) both of which are either on or off; odd or even; 0 or 1.
2) In serial communications, an error detection bit that is added to a
group of data bits making the sum of the bits even or odd. Parity
can be set to none, odd, or even.
Glossary
Glossary-11