Which of the following pairs is known as universal gates?
- A.AND and OR
- B.NAND and NOR
- C.XOR and XNOR
- D.NOT and AND
Show answer
Each of these gates alone is enough to build every other gate and so every logic circuit: a NAND with its two inputs tied together acts as a NOT, two NANDs in sequence give an AND, and a suitable arrangement of three gives an OR, and the same can be…
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