Dictionary:AND gate

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A circuit with multiple inputs that functions only when a signal is present at all inputs. If the inputs are A and B, AND is denoted as (A·B), (A B), (A∩B), (A×B), or the ‘‘intersection of A and B.’’ See Figure B-5.

FIG. B-5. Boolean algebra. (a) Symbolic representations; (b) truth table showing rules, no and yes represented by 0 and 1 respectively; (c) laws of Boolean algebra; (d) Venn diagram representation by shaded areas; (e) circuit diagram representations. Gates may have more than two inputs.