[HankB99]

I learned more about the details of how computer worked in a class on programming an Intel 8080 (on a CP/M system with dual 8" floppy drives) than any other course. Computer science majors were either nascent or non-existent at that time so I don't know what is available today. And microprocessors are a lot more complex than the 8080.

Nevertheless, I recommend learning the details of computer architecture by learning some assembly programming. Higher level languages are an abstraction meant to shield the developer from the details of the H/W but it remains useful to understand the details, particularly if the abstraction is broken.