= HDL =

HDL or Hardware Description Language is a language for 'programing' logic gates
for digital electronics.

== Modeling ==

There are various ways to describe the function of the digital circut in
question.

=== Gate Level Modeling ===

* Use representations of gates (and, nand, or, etc)
* Syntax of `not(OUTPUT, INPUT)`
* Wires often used as a intermediate for signals between gates