This is one of the standard logical operators. For two logic inputs A, B the output is true - (logic 1) only if both inputs are true otherwise it is false (logic 0)
In Boolean algerbra notation the AND operation is usually indicated by a dot between the inputs
Q = A.B
Multi-input AND gates are also available, in which case every input has to be true for the output to be true.
For all the standard logical operators Go here
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Click on this link: Define the AND operator