Multiplexers and demultiplexers are used at which ends of communication systems respectively?ans.

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Multiplexers are used at the transmitting end of a communication system, while demultiplexers are used at the receiving end.

Here's a step-by-step explanation:

1. Multiplexers: A multiplexer, also known as a mux, is a device that combines multiple input signals into a single output signal. In a communication system, the multiplexer is used at the transmitting end. It takes signals from various sources, combines them into one signal, and sends it over a single communication line. This is done to increase the efficiency of the communication system and reduce the cost of transmission.

2. Demultiplexers: A demultiplexer, also known as a demux, is a device that does the opposite of a multiplexer. It takes a single input signal and separates it into multiple output signals. In a communication system, the demultiplexer is used at the receiving end. It takes the combined signal from the communication line, separates it into the original signals, and sends them to their respective destinations.

So, in summary, multiplexers are used at the transmitting end and demultiplexers are used at the receiving end of a communication system.

Multiplexers are used at the transmitting end of a communication system, while demultiplexers are used at the receiving end.

Here's a step-by-step explanation:

1. Multiplexers (also known as muxes) are devices that combine multiple input signal lines into one output line. The signals on the input lines are transmitted one at a time to the output line, and the specific input line chosen for transmission is determined by a set of selection lines.

2. In a communication system, the multiplexer is used at the transmitting end. The purpose of this is to allow multiple signals to be sent over a single communication line (such as a telephone line or a fiber optic cable), which can greatly increase the efficiency of the system.

3. Demultiplexers (also known as demuxes) are devices that perform the opposite function of multiplexers. They take a single input line and distribute the signal to one of many output lines. The specific output line chosen for distribution is determined by a set of selection lines.

4. In a communication system, the demultiplexer is used at the receiving end. The purpose of this is to separate the multiple signals that were combined by the multiplexer at the transmitting end. This allows each of the original signals to be individually processed or used.

So, in summary, multiplexers are used at the transmitting end of a communication system to combine multiple signals into one, and demultiplexers are used at the receiving end to separate the combined signals back into individual ones.