Daemons work for you

A daemon is a computer program that runs in the background, rather than under the direct control of a user;

Systems often start (or “launch”) daemons at boot time: they often serve the function of responding to network requests, hardware activity, or other programs by performing some task. Daemons can also configure hardware (like devfsd on some Linux systems), run scheduled tasks (like cron), and perform a variety of other tasks.

Non Unix operating system have different ways of allowing user independent tasks to run.  Microsoft based systems call such processes services. They run independently of user control but can still be administered through Computer Management via the Control Panel.