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O
OCR: Optical Character Recognition (reader). A technique or device that
OCR wand: A device that reads, using an optical device, hand written or
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: Refers to two or more processes or events that can occur
parallel interface: Refers to a type of information exchange that transmits
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
plug and play: A capability with Windows that enables the system to
pixel: A picture element. The smallest dot that can be made on a display or
port: The electrical connection through which the computer sends and
User's Manual
uses laser or visible light to identify characters and input them into a
storage device.
machine printed symbols into a computer. See also OCR.
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.
simultaneously, and without interfering with each other. See also
serial.
information one byte (8 bits) at a time. See also serial interface.
(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.
automatically recognize connections of external devices and make
the necessary configurations in the computer.
printer. Also called a pel.
receives data to and from devices or other computers.
Glossary
Glossary-11
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