Recommended · for beginners

Learn how computers add numbers and build a 4 bit adder circuit

Ben Eater

Why people recommend it

Ben Eater explains binary addition and builds a 4-bit adder from logic gates on a breadboard; suggested to people asking how a processor physically does arithmetic.

Watch for: floating CMOS inputs on the switches

In their words

I think that's what this guy (Ben Eater) did in this video:

Roman on electronics.stackexchange.com, Apr 2017. CC BY-SA.

What is the difference between mine and this guys's.

user268301 on electronics.stackexchange.com, Nov 2020. CC BY-SA.

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