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

Multiplexers (MUX) and demultiplexers (DEMUX) are essential components in communication systems, serving specific functions at both ends of the transmission medium.

1. Multiplexers are used at the transmitting end of a communication system. Their primary function is to combine multiple signals into a single signal for transmission over a shared medium. This process allows for efficient use of bandwidth, as several data streams can be sent simultaneously without interference.

2. Demultiplexers, on the other hand, are found at the receiving end of the communication system. They serve the opposite purpose of multiplexers by taking the combined signal received and separating it back into the original individual signals. This is crucial for interpreting the data correctly at the destination.

In summary, multiplexers are used at the transmitting end, while demultiplexers are utilized at the receiving end of communication systems, enabling effective data transmission and retrieval.