NOR gate facts for kids
| INPUT | OUTPUT | |
| A | B | A NOR B |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 0 |
The NOR gate is a logic gate that outputs 1 (true) when both of its inputs are 0 (false). That means that if at least one of its inputs is 1 (true), the output will be 0.
The best way to remember a NOR operation is "neither one or the other, nor both."
Symbols
There are three symbols for the NOR gate:
 |
 |
 |
| MIL/ANSI Symbol | IEC Symbol | DIN Symbol |
Images for kids
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The physical layout of a CMOS NOR
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Unbuffered CMOS two input NOR gate
See also
In Spanish: Puerta NOR para niños
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NOR gate Facts for Kids. Kiddle Encyclopedia.