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NOR gate

NOR gate

2-input NOR
A B A NOR B
0
0
1
0
1
0
1
0
0
1
1
0

The NOR (⊽) gate is a digital logic gate that implements logical NOR. The output is off when at least one of the inputs are on. In Minecraft, this is the basic logic gate, implemented by a redstone torch. A torch can have as many as 5 mutually isolated inputs, but 3 can fit comfortably (design A), and all are optional.

A NOR gate with 1 input is the NOT gate, and with no inputs is the TRUE gate (i.e. a power source). If more inputs than 5 are necessary, one must resort to the non-isolated OR gate with a NOT at the end (at expense of isolation).

TablesEdit

3-input NOR
A B C Out
0
0
0
1
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
0
4-input NOR
A B C D Out
0
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
1
0
0
1
1
0
0
0
1
1
1
0
1
0
0
0
0
1
0
0
1
0
1
0
1
0
0
1
0
1
1
0
1
1
0
0
0
1
1
0
1
0
1
1
1
0
0
1
1
1
1
0
Design A B
Size 1x1x2 3x3x3
Torches 1 1
Redstone 0 5
Inputs 3 4
Inputs isolated? Yes Yes

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