Binary

 John
Binary is a number system that only uses 0 and 1 to represent all numbers. 0 and 1 can represent on and off.

logic gates determine outputs by processing inputs that are manipulated by the gates processor.

NOT gate

 
Input Output
0          1
1          0

AND gate


Input A  Input B    Output
    0          0                0
    0          1                0
    1          0                0
    1          1                1


OR gate

Input A        Input B       Output
0                  0                  0
0                  1                  1
1                  0                  1
1                  1                  1