To demonstrate how computers work, [Alex Gorischek] has made a physical example of how binary logic gates work using pulleys and weights. For anyone who doesn’t know much about logic gates ...

“Computers add numbers together using logic gates built out of ... and chained them together so they add 4 digit binary numbers.” Logic gates are fundamental building blocks of digital circuits.

They use addition to emulate other mathematical ... If you're curious about binary and logic gates and how they become a computer, there's a book for that. In the meantime, now that you know ...