Nor gate - introduction to microprocessors , Electrical Engineering

NOR Gate

NOR means NOT OR . it complements the  output  of an OR  gate.  The symbol  of Nor  gate in fig. (a) shows that a Nor  gate  comprises  of an OR  gate followed  by a NOT  gate. Generally. Not  operation is represented by a bubble as shown in figure  (b) the  truth table  of a two  input  Nor  gate is  shown in figure.

The Boolean expression for  two  input  Nor  gate i.

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