What does NAND mean?

NAND is a fundamental concept in digital logic design and computing. It stands for "Not AND," which refers to a type of logic gate. A NAND gate produces a false output only when all its inputs are true; otherwise, it outputs true. This makes it a universal gate, meaning that you can create any other type of logic gate or complex logic circuit using just NAND gates alone.

The choice indicating "Both" does not accurately represent the nature of the NAND operation since it specifically relates to the conjunction of inputs followed by negation, whereas "Both" could suggest a more inclusive or affirmative condition.

Understanding that NAND gates are foundational to how digital circuits operate helps clarify why the option that represents a logical negation of the AND operation (Not AND) is essential in engineering and computing contexts.