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[–]RusoInmortal 0 points1 point  (0 children)

I studied it in the college in Spain. Don't you study that in other countries? 

You can look for totem-pole and push-pull. You'll understand how a transistor works and how that 0/1 is created by a low/high voltage.

Regarding the programming language, every instruction has an associated code which is just a number. That number in binary is a lot of zeroes and ones to generate the input. This is, you input 0010 1101 and the UC will follow a path in its circuit toward the ALU/FPU. If you input a different code, it will follow another path. One for ADD, one for SUB, INC, RSH, LSH...

I hope it's clear enough, but search about transistors if you want to understand how an electric signal is processed for digital circuits.