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About Logic Gates
Logic gates are circuits with electronically controlled switches that combine digital signals according to Boolean algebra. In binary math, bits have only two possible values: 0 (off, false) and 1 (on, true). Consequently, there are three basic logic gates from which all other combinatorial logic functions are generated. Inverters, or NOT gates, have only one input and reverse the logic state. A true input produces a false output, and vice versa. AND gates performs a logical “and” operation on two inputs, A and B. With OR gates, the variable Q equals 1 if A is 1, B is 1, or if both A and B are 1. NOT, AND, and OR logic gates are considered to be functionally complete because they can be used to generate any function. Complex applications use numerous NOT, AND, and OR gates, along with NAND, NOR, XOR, and XNOR gates.
Engineering Web: Logic Gates - Machine Design
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Logic gates with Lego | Machine Design Logic gates with Lego December 27, 2006 |
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Molecular logic | Machine Design The group has previously shown that such molecules can serve as logic gates. |
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Machine Design | Logic gates with Lego Here is a Web site by a guy who designed The Latest Videos from EngineeringTV.com |
