Multiple choice

A combinational logic circuit which is used when it is required to send data from two or more sources through a single transmission line is called

  1. decoder

  2. encoder

  3. multiplexer

  4. demultiplexer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A multiplexer selects one input from multiple sources and sends it through a single output line - combining many sources onto one transmission path. This is the opposite of a demultiplexer. Encoders compress information and decoders expand it, but don't perform data selection.

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