IBM RT PC Options Installation page 202

monochrome
display.
A display device that has
only one color.
parallel transmission. In data communication,
the simultaneous transmission of a certain
number of signal elements (bits) constituting
the same telegraph or data signal over a data
circuit. Contrast with serial transmission.
plotter. A printing device externally attached
with cables to the system unit, used to print
two-dimensional graphs and charts.
plug. A device that connects the wires of an
electrical circuit to an electrical source. The
plug is designed to be inserted into a jack. See
connector.
port.
(1)
A part of the system unit or remote
controller to which cables for external devices
(display stations, terminals, printers) are
attached. (2) An access point for data entry or
exit.
printer. A device externally attached to the
system unit, used to print system output on
paper.
problem determination. The process of
identifying why the system is not working.
Often this process identifies programs,
equipment, data communications facilities, or
user errors as the source of the problem.
reinstall. To put back the part that was
removed.
resistor. An electronic circuit element used to
hinder the flow of electric current.
RS-232C. A standard set by the EIA for
communication between computers and
externally attached equipment.
RS-422A. A standard set by the EIA for
communication between computers and
externally attached equipment.
serial transmission. In data communication,
sequential transmission at successive intervals of
signal elements (bits) constituting the same
telegraph or data signal over a data circuit.
Contrast with parallel transmission.
setup. (1) The process or act of preparing and
adjusting a machine or device for its assigned
work. (2) The way in which the system unit
and the external devices are arranged.
system. The computer and its associated
devices and programs.
system configuration. A process specifying the
machines, devices, and programs forming a
particular data processing system.
system unit. The part of the system that
contains the processing unit, the fixed-disk
drives and disk, and the diskette drives.
terminal. In data communications, a device,
usually equipped with a keyboard and a display,
capable of sending and receiving information
over communications lines. See work station.
work station. A device at which an individual
transmits information to or receives information
from a computer while doing a task. An
example of a work station is a display station,
terminal, or printer.
Glossary
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