My "Aha!" moment came during my foundations of CS class at uni. As such, I'd suggest reading up on the work of Alan Turing (Church is good too, but Turing's st

My "Aha!" moment came during my foundations of CS class at uni. As such, I'd suggest reading up on the work of Alan Turing (Church is good too, but Turing's state-machine-based definitions are usually more approachable to a beginner).