Which expression represents a NAND gate?

  1. A + B
  2. (A + B)'
  3. (AB)'
  4. A'B'
Answer

C) (AB)'

NAND is NOT-AND: (AB)'. By De Morgan it also equals A' + B'. SLO CS-11-A-01

Computer Science MCQ · More Unit 1: Computer Systems MCQs · Practise