In order to answer these questions a bit more and start learning programming, [Nakazoto] built a 10-bit binary adder with relays. The build is designed from the ground up, including the PCBs ...

This 2-bit adder was a lot of work to build ... It’s a rather unorthodox use of the part, depending more on the chip as an inverter and taking advantage of the fact that there’s an NPN ...

The formal name of the chip. An integrated circuit (IC ... To learn how a digital circuit works, go to half adder and travel through a circuit found in every CPU no matter its size.