Building logic gates out of silicon is old hat ... crab-based system of computation couldn’t be expanded to a (very) basic calculator.

A recent paper in Nature Communications discusses how to 3D print common logic gates using both macro-scale 3D printing techniques and a much smaller version with microstereolithography.

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.

In its most basic form, a computer is a collection of powered and unpowered circuits and transistors. A logic gate is a series of transistors connected together to give one or more outputs ...

A fully optical logic gate could allow us to transition ... used these optical logical gates to process basic information ...