Vacuum tubes replaced relays as the main elements for computation. A simplified circuit that implements the NOR logic gate, which only outputs 1 when both inputs are o, is show at the right.

A collection of transistors and resistors that implement Boolean logic operations in a digital circuit. Logic gates have one or two 0 or 1 inputs but only one 0 or 1 output as in the following ...

Circuit simulation is a very ... Redstone elements to make simple circuits and logic gates. For instance, the image to the right shows an OR gate. Flick the switch and the piston actuates ...

A logic gate is a simple device that takes inputs ... As a quick example, let's look at a 1-bit full adder. This circuit takes three inputs (A, B, and Carry-In) and produces two outputs (Sum ...

A logic gate is a series of transistors connected together to give one or more outputs, each output being based on the input or combination of inputs supplied to it.

A single digital signal has only two states - on or off. However, if you use two inputs you can double the number of possible states, to four.