Toshiba PSAA8C-17202C User Manual page 156

nonvolatile memory: Memory, usually read-only (ROM), that is capable of
numeric keypad overlay: A feature that allows you to use certain keys on
O
OCR wand: A device that reads, using an optical device, hand written or
OCR: Optical Character Recognition (reader). A technique or device that
on-line 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 interface: Refers to a type of information exchange that transmits
parallel: Refers to two or more processes or events that can occur
parity: 1) The symmetrical relationship between two parameter values
password: A unique string of characters used to identify a specific user.
pel: The smallest area of the display that can be addressed by software.
peripheral component interconnect: An industry standard 32-bit bus.
peripheral device: An I/O device that is external to the central processor
User's Manual
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.
machine printed symbols into a computer. See also OCR.
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
devices.
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.
information one byte (8 bits) at a time. See also serial interface.
simultaneously, and without interfering with each other. See also
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, supervisor and eject.
Equal in size to a pixel or group of pixels. See pixel.
and/or main memory such as a printer or a mouse.
Glossary
Glossary-11