Multiple choice general knowledge science & technology

The NAND gate is equivalent to?

  1. bubbled AND

  2. bubbled OR

  3. bubbled XOR

  4. NONE OF THESE
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

NAND = AND followed by NOT. In gate symbolism, this is represented as an AND gate with a bubble (inversion circle) at its output. This is called a bubbled AND gate. Alternative equivalent representations include OR with bubbles at all inputs (De Morgan's law), but bubbled AND is the direct representation.

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