The Dr. has since built AND, NAND, OR, NOR, XOR and XNOR gates, as well as a buffer, incorporating light into every logic gate. Traditional inverters – NOT gates – are already made with diodes ...

Paul Mulvaney from the University of Melbourne, used these optical logical gates to process basic information purely using light. According to Phys.org, the team ran several read, write ...

DNA-based logic ... a second gate and so on. Such “cascading gates” allow for more complex calculations: the entire set of steps required for addition and subtraction, for example ...

The simplest way to think of a transistor is as a controllable switch ... A logic gate is a simple device that takes inputs, performs an operation, and outputs a result. For example, an AND ...