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 ...

[Syst3mX] emailed us about his Binary Calculator earlier this week and it almost slipped into the depths of our inbox. Luckily We noticed it in there today and thought we’d share. He wanted to ...

The output of the half-adder is a result of 0 or 1 and a carry of 0 or 1. Additional circuits shift the operation to the next binary digit on the left until the entire number has been added.