Toshiba A660 User Manual page 229

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
parity: 1) The symmetrical relationship between two parameter values
password: A unique string of characters used to identify a specific user.
PC card: A credit-card-sized expansion card designed to increase the
PCI: Peripheral Component Interconnect. An industry standard 32-bit bus.
User's Manual
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.
(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.
The computer provides various levels of password protection such
as user and supervisor.
capabilities of notebook computers. PC Cards provide functions
such as modem, fax/modem, hard disk drive, network adapter,
sound card, or SCSI adapter.
A660/A660D/A665/A665D
Glossary-11