For sending input I6 on the output line of a 8×1 multiplexer, (an 8×1 MUX with inputs I0...I7, selection lines S2, S1, S0, driving output O/P, is shown) which of the following will represent the combination of selection lines?
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Correct answer: C. 110
Explanation
An 8×1 multiplexer has 3 selection lines S2S1S0 since 23 = 8, and input Ik is routed to the output exactly when the selection lines equal the 3-bit binary form of k. Converting 6 to binary: 6 = 4+2, i.e. 110. So S2S1S0 = 110 selects I6 for the output.More Computer System Architecture questions
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