I’m very interested in learning how computers work, but can’t seem to find the exact information I’m looking for. My understanding is, and **please** correct me if I’m wrong, is that if you press the letter “A” on a keyboard, a circuit underneath will close which sends electricity to wires, and based on the combination of voltages on the wires, the computer outputs an “A”. But how does the computer know what do to with voltages? What do the voltages represent? At what point does any of this information get converted into binary, and once it does, what happens?
I don’t expect someone to be able to explain this like I’m five. For me, it’s a difficult, but really interesting subject. Any clarification and dumbing down is appreciated! I’m really hoping to get a better grasp on my understanding of all this.
Edit: I should’ve made the title “How do computers work?” Still wondering how computers know what to do with 1’s and 0’s, though.
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Do you know transistors? For example OR logic transistor has 2 inputs and 1 output. Give an electricity to one of the input or both, and it will output an electricity (as the result of OR logic). There is also AND logic transistor. You need to send 2 inputs of electricity for it to output an electricity (AND logic). There are also other logic like XOR. Just by using the combination of those transistors, you can create simple to complex logic machine like for example a vending machine.
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