Glossary - IBM RT User's Setup Manual

converts the signal received to data for
the computer.
See
module. component.
monochrome display.
that has only one color.
parallel transmission.
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
A printing device externally
plotter.
attached with cables to the system unit,
used to print two-dimensional graphs and
charts.
A device that connects the wires of
plug.
an electrical circuit to an electrical
source. The plug is designed to be
inserted into a jack. See
A part of the system unit or
port. (1)
remote controller to which cables for
external devices (display stations,
terminals, printers) are attached. (2) An
access point for data entry or exit.
A device externally attached to
printer.
the system unit, used to print system
output on paper.
problem determination.
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.
A display device
In data
serial transmission.
connector.
The process of
To put back the part that was
reinstall.
removed.
An electronic circuit element
resistor.
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.
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.
The process or act of preparing
setup. (1)
and adjusting a machine or device for its
assigned work. (2) The way in which the
system unit and the external devices are
arranged.
The computer and its associated
system.
devices and programs.
system configuration.
specifying the machines, devices, and
programs forming a particular data
processing system.
The part of the system that
system unit.
contains the processing unit, the
fixed-disk drives and disk, and the diskette
drives.
In data communications, a
terminal.
device, usually equipped with a keyboard
In data
A process
Glossary X-3