Let’s take a look at what it takes to create some fun, out-of-the-ordinary gate implementations. As an example, let’s consider the AND gate (the others are OR, NOT, NAND, NOR, XOR and XNOR).

[IMSAI Guy] grabbed an obsolete XOR gate and tried a classic circuit to ... However, you could use other gates, including the other XOR gates in the package to realize a fast delay.

Note especially the XOR gate. As we see, if one of the inputs is held at a logic one value, then the output will be the inverse of the other input. This immediately allows us to come up with a ...

While previous research had already proven biological logic gates could be made ... complex "NAND gate." NAND gates are significant because any Boolean function (AND, OR, NOT, XOR, XNOR), which ...