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LOGIC GATES

THE 'AND' GATE

Logic Gates        Main

The symbol used when showing an AND gate in a logic circuit is shown as follows:

The table below is known as a 'Truth Table' and defines the operation of an OR gate for every combination of inputs and outputs. Truth table are a useful way for describing logic Circuits

 Truth Table

X       Y       X OR Y
0       0          0
0       1          0
1       0          0
1       1          

With an AND gate you need to have both X input AND the Y input to be 1s so that the output becomes 1

The Boolean (True & False) Operator for the AND gate is the AND operator '.' and is written as:

X . Y (read as X and Y)