Multiplexers: The Universal Logic Gate

You can build literally any digital logic gate using just a Multiplexer. Think of a MUX as

the ultimate traffic cop for your electronics. It takes a massive pile of input lines, checks a specific

select code, and lets exactly one signal pass through to the output. It is not just for

routing data, though. By manipulating the inputs, this simple selector

becomes a universal tool that can mimic AND, OR, and NOT gates perfectly.

If you reverse the whole process, you get a Demultiplexer, which takes one signal and shoots

it to a specific destination. It is the Swiss Army knife of computer engineering.