Moderate

An OR gate has 6 inputs. The number of input words in its truth table are________________?

Correct answer: C. 64

  • A. 6
  • B. 32
  • C. 64
  • D. 128

Explanation

A truth table for n inputs has 2^n possible input combinations, since each input can independently be 0 or 1. For six inputs, this gives 2^6 = 64 words.

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