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Multiplexing

Multiplexing, also known as muxing, is when multiple analog or digital signals are combined into one signal over a shared medium, to use the most out of that connection. For instance, several telephone calls can be carried over a single wire. Devices that perform multiplexing are called multiplexers (MUX) or a device doing the reverse is called a demultiplexer (DEMUX). Inverse multiplexing (IMUX) does the opposite, and takes one data stream and converts it into multiple data streams that can be broadcast simultaneously over more than one communication channel and then combined back together.

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