Larry C. answered • 06/18/19
Tutor
4.9
(294)
30+ years experience in Windows-based applications, including Office
Yes, Windows is continually polling active apps in succession. The CPU can only process for one app at a time, so the computer pauses each to process the next for a brief slice of computing time. For apps that have a listener component checking for events such as user activity (mouse clicks, etc.), loading of data, etc., if nothing has occurred for a certain number of cycles, the operating system may conclude there is a potential problem.
