The OR gate has two input lines and one output line.

Basically, if either or both of the inputs are a 1, the resulting output value is a 1.

Note in the truth table, the only time the output is 0 is when both inputs are 0.

Symbol for OR Gate



Truth Table for OR gate

A	B	A+B
0	0	0
0	1	1
1	0	1
1	1	1

F = A+B

OR Gate	Truth Table
	Input		Output
	A	B
	0	0	0
	0	1	1
	1	0	1
	1	1	1
Select An Input Value	None 0 OR 0 0 OR 1 1 OR 0 1 OR 1

The OR gate has two input lines and one output line. Basically, if either or both of the inputs are a 1, the resulting output value is a 1. Note in the truth table, the only time the output is 0 is when both inputs are 0.

Select an input combination from the pull-down selector and view the resulting output.

The OR gate has two input lines and one output line. Basically, if either or both of the inputs are a 1, the resulting output value is a 1. Note in the truth table, the only time the output is 0 is when both inputs are 0.

Select an input combination from the pull-down selector and view the resulting output.