- noun a logical function whose output is true if all inputs are the same level and false if any are different.
- A logical operation which is true if all of its elements are the same. For example, if all of its multiple inputs have a value of 0, then the output is 1. And, if all of its inputs have a value of 1, then the output is 1. Any other combination yields an output of 0. For such functions, a 1 is considered as a true, or high, value, and 0 is a false, or low, value. Its abbreviation is XNOR. Also called exclusive NOR operation.
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