It’s time to do a series on logic including things such as programmable logic, state machines, and the lesser known demons such as switching hazards. It is best to start at the beginning &#82… ...

By combining NOT and OR gates, you can easily make a NAND gate, an AND gate, a NOR gate, and any other logic you can dream up. Mechanical computing is decidedly old school, but not at these scales.

Other logic gates include OR, NOR, XOR, and XNOR, each with different logical functions. Above, we can see how two basic gates are constructed from transistors: an inverter and a NAND gate.