<Tr> <Td> </Td> <Td> 0 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 0 </Td> </Tr> <P> The XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd . An XOR gate implements an exclusive or; that is, a true output results if one, and only one, of the inputs to the gate is true . If both inputs are false (0 / LOW) or both are true, a false output results . XOR represents the inequality function, i.e., the output is true if the inputs are not alike otherwise the output is false . A way to remember XOR is "one or the other but not both". </P> <P> XOR can also be viewed as addition modulo 2 . As a result, XOR gates are used to implement binary addition in computers . A half adder consists of an XOR gate and an AND gate . Other uses include subtractors, comparators, and controlled inverters . </P>

Why xnor and xor are called exclusive gates
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