It may be easier to understand an operating system's resource allocator role with an example. Reference needed Reference needed

Distinguish between the existence of system calls and the absence of system calls in an operating system. A new system call may be implemented in an operating system for a variety of reasons.

It is essential that you have a solid understanding of the distinction between an operating system and the applications or programs that it supports. You begin by providing a few illustrations, and then you go on to talk about the characteristics that each of those illustrations has.

Here, a succinct summary of the two functions that are regarded as the most essential parts of an operating system should be provided.