I agree with jrowley, and here are some resources I can recommend. These are college textbooks, not websites. First, some EE. Horowitz & Hill's "The Art of E

I agree with jrowley, and here are some resources I can recommend. These are college textbooks, not websites. First, some EE. Horowitz & Hill's "The Art of Electronics" is the gold standard. https://artofelectronics.net/ https://artofelectronics.net/ Then, Hennessey and Patterson's "Computer Organization and Design: The Hardware/Software Interface (ARM edition)", https://www.amazon.com/Computer-Organization-Design-ARM-Architecture/dp/0128017333 https://www.amazon.com/Computer-Organization-Design-ARM-Arch... ...or Tannenbaum's "Stuctured Computer Organization" https://www.amazon.com/Structured-Computer-Organization-Andrew-Tanenbaum/dp/0132916525 https://www.amazon.com/Structured-Computer-Organization-Andr...