The computer's master control program. When a computer is turned on, a small "boot program" loads the operating system. Although additional system modules may be loaded as needed, the main part, known ...

Modern real-time operating systems support multitasking with a priority-based pre-emptive scheduler. Each concurrent task (or “thread”) in an application program is assigned a priority number. It is ...

We have already considered the multi-tasking concept – multiple quasi-independent programs apparently running at the same time, under the control of an operating system. Before we look at tasks in ...