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Question 355

What logical operation does an OR gate perform?

  1. It produces a 1 at its output if any input is 1Correct answer
  2. It produces a 0 at its output if all inputs are 1
  3. It produces a 0 at its output if some but not all inputs are 1
  4. It produces a 1 at its output if all inputs are 0

Explanation

An OR gate asserts its output whenever at least one input is asserted, so the output is 1 if any input is 1 and 0 only when all inputs are 0.

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Question 355: What logical operation does an OR gate perform? · FCC Amateur Extra Class (Element 4) · Questena