What digital circuit selects binary data from one of multiple input channels and routes it to a single output transmission line based on the state of select lines?
Answer and explanation
Correct answer: C. Multiplexer (MUX)
- Step 1: Data steering in computer architecture requires dynamically directing data paths among various registers and buses.
- Step 2: A multiplexer (MUX), often called a data selector, employs select lines to control which of input data lines is routed to the single shared output.
Answer
Multiplexer (MUX)
Why not the others: 'Demultiplexer (DEMUX)' A demultiplexer takes a single input line and distributes it to one of multiple output channels based on select lines; 'Encoder' An encoder compresses multiple input lines into a smaller number of coded binary output bits (e.g., priority encoder); 'Flip-flop' A flip-flop is a sequential bistable multivibrator circuit that stores a single bit of state, not a routing multiplexer.
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