The most common logic gates are the following AND |A|B|O| |0|0|0| |0|1|0| |1|0|0| |1|1|1| NOT |A|B|O| |0|0|1| |-|-|-| |-|-|-| |1|1|0| NAND |A|B|O| |0|0|1| |0|1|1| |1|0|1| |1|1|0| OR |A|B|O| |0|0|0| |0|1|1| |1|0|1| |1|1|1|