Following the same pattern, a Negative-OR gate functions the same as an OR gate with all its inputs
inverted. In keeping with standard gate symbol convention, these inverted inputs are signi¯ed by
bubbles. The behavior and truth table of a Negative-OR gate is the same as for a NAND gate
2-input Negative-OR gate
|
A |
B |
OUTPUT |
|
0 |
0 |
1 |
|
0 |
1 |
1 |
|
1 |
0 |
1 |
|
1 |
1 |
0 |
Equivalent gate circuits
