Building an 8-bit addition calculator with circuits
Pt En I have a childhood friend that had very interesting toys... He used to play around with circuits, multimeters, LED lights, small batteries, etc. I loved going to his house and watch him play with all that. That is probably why I find circuits (in their basic form) very interesting: the current flowing and the logic gates operating on the circuits and whatnot. Because of that, in this post I will show you how to build an 8-bit addition calculator just with circuits! For that I will be using logic.ly , a circuits simulator that I can run in my browser. The best way to go about this is by starting with small components and then using a nice feature of logic.ly, which enables one to create "integrated circuits": it takes one circuit we created and transforms it into a single piece. Of course that before anything else one must know how to add two numbers in binary. It is essentially the same as in with decimal numbers, except that $1 + 1 = 10$ now. To c...