For example, a simple program in a simulated environment that waits for user input seems to be doing no work, so I guess it uses CPU only for the time. I'd like to know if computer systems (that don't have any services installed or are disabled ie. logging, updates, etc) could theoretically have constant/zero/minimum CPU load? (because they would be doing no work)I don't know if all systems need to have a clock. But even if all systems need to have a clock that needed to count on time, would it be the only service that uses CPU?  And would CPU load be constant?
Is it possible for a computer system to have constant/zero CPU load?
operating systems;hardware;cpu