'How does a program "sit and wait" for an input while the program is running? (Conceptually)
I am trying to understand conceptually how any program is "watching to" or "waiting for" user input while running and continues to run after input was given... or even, what does it mean "the program is running". What does make the program sit and wait and not end the execution when the computer reads all lines of instructions? Is there a set of infinite loops that are waiting for some specific inputs?
I am a web developer (but I didn't study at a technical university) and I guess this concept is a pretty low level in informatics but I think it's very important for any kind of software developer to get better intuition in this topic.
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