The OR gate is also a two-input, single-output gate. Unlike
the AND gate,
the output is 1 when one input, or the other, or both are 1.
The OR gate
output is 0 only when both inputs are 0.
A
|
B
|
Q=A AND B
|
0
|
0
|
0
|
0
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
A related gate is the XOR, or eXclusive OR gate, in which the output is 1
when one, and only one, of the inputs is 1. In other words, the XOR output
is 1 if the inputs are different.
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