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Logical gates are fundamental building blocks in digital electronics, used to perform logical operations on one or more binary inputs to produce a single output. They operate on the binary system, where the values are either 0 (representing false or low voltage) or 1 (representing true or high voltage). Each logical gate implements a specific logical function that is central to the design of digital circuits, computers, and various electronic devices. The simplest type of logical gate is the AND gate. The AND gate has two or more inputs and one output. It outputs 1 only when all its inputs are 1; otherwise, it outputs 0. Its graphical symbol is a D-shaped curve with inputs entering from the left and output on the right. The truth table for a two-input AND gate shows that when both inputs A and B are 1, the output Y is 1; in all other cases, Y is 0. ``` A | B | Y --------- 0 | _________ ____ __________ _____ _________ _____ _____ _____ _____ ______.
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