题目内容
Computers, electronic clocks, and programmable logic controllers are constructed of digital circuits.
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There are six basic logic gates: AND, OR, NOT, NAND , NOR, and XOR.
Take XOR as an example, the basic operations of XOR ( Exclusive-OR ) gate are described below with the aid of its truth table .
A logic gate is an elementary building block of a digital circuit. Using combinations of logic gates, complex operations can be performed.
A NOR gate can have two or more inputs. The dot 'o' on the output means 'not' showing that it is a Not OR gate. The output of a NOR gate is true when none of its inputs are true.
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