For those just getting their start in digital logic, this teaching tool allows different logic gates to be wired together with patch cables. While [David] first thought to use 74-series logic ...

An AND gate usually has two inputs. AND tells us that both Input A AND Input B have to be 1 (or ON) in order for the output to be 1. Otherwise the output is 0.

Optical logic gates and photonic crystal devices are at the forefront of research in optical computing, which aims to leverage light for processing information instead of traditional electronic ...