GATE Computer Science (CS) 2020 Solved Papers

Question : 12 of 65

Marks: +1, -0

A multiplexer is placed between a group of 32 register and an accumulator to regulate data movement such at that any given point in time the content of only one register will move to the accumulator. The minimum number of select lines needed for the multiplexer is ______ .

Your Answer:

Validate

Solution:

MUX:

2^{n}

inputs,

n

selection lines,

1 {o} {/ }{p}

2^{n}=32 \;\; ⇒ n=5

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