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Test Your EQ #145— Answer

Answer 3

Consider the following majority gate:

If we fix one of the inputs of the majority gate at logic "1" and use the other two inputs for A and B, then the output Y is given by the following truth table:

A B Y = M(A, B, 1)
0 0 0
0 1 1
1 0 1
1 1 1

It's clear that the majority gate functions as a two-input OR gate when the third input is fixed at logic "1".

When one of the inputs of the majority gate is fixed at logic "0", as shown below, the gate functions as a two-input AND gate.

Contributor: Naveen PN

Published: August-2002

   

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