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

Let's build a circuit that adds numbers! Binary addition is even easier than decimal addition since you don't have to know how to add numbers larger than 1.

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You can get all the components used in this video from any online electronic components distributor for a few dollars.

Complete parts list: 2x 74LS86 (Quad two-input XOR gate) 2x 74LS08 (Quad two-input AND gate) 1x 74LS32 (Quad two-input OR gate) 2x 4-position DIP switch 5x LEDs 1x Solderless breadboard 22 gauge wire USB charger and cable or some other 5v power source ... https://www.youtube.com/watch?v=wvJc9CZcvBc