I learned it the hard way as well. I think my book was "computer architecture" by Morris & Mano you start from PN to logic gates to truth tables to carnough dia

I learned it the hard way as well. I think my book was "computer architecture" by Morris & Mano you start from PN to logic gates to truth tables to carnough diagrams to writing your own adder to D transistors to memory to bus to clock to cpu to write your own assembly to perform machine instructions.