Which logic gate produces an output of 0 unless both inputs are 1?

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The logic gate that produces an output of 0 unless both of its inputs are 1 is the AND gate. In the case of an AND gate, it requires both inputs to be true (1) in order to produce a true output (1). Here’s how it works:

  • When both inputs are 1, the output is 1. This reflects the gate's fundamental operation—only when both conditions are satisfied does it affirm the input by outputting a 1.

  • For all other combinations of inputs, which include both inputs being 0, one input being 0, and the other input being 1, the output will invariably be 0. This behavior establishes the AND gate's characteristic of needing all conditions to be met to produce a positive output.

In contrast, the other gates listed do not share this same condition. The XOR gate generates a 1 only when the inputs differ, while the NAND gate produces a 0 only when both inputs are 1, but the rest of the time it outputs a 1. The OR gate, on the other hand, produces a 1 as long as at least one input is 1, which is the opposite of what is asked in the question. Thus, the

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