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Related to duplexing: multiplexing


(computer science)
The provision of redundant hardware or excess capacity which can pick up the work load in the event of failure of one part of a computer system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

duplex printing

The capability of printing on both sides of the paper. See duplex printer.

duplexed system

Two systems that are functionally identical. They both may perform the same functions, or one may be standby, ready to take over if the other fails.


Capable of transmitting and receiving over the same channel simultaneously. In pure digital networks, this is achieved with two pairs of wires. In analog networks or in digital networks using carriers, it is achieved by dividing the bandwidth of the line into two frequencies, one for sending, the other for receiving.
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