Overview of the Role of the Linux Kernel

From a programmer's perspective, the kernel of the OS
provides an extended or virtual computing platform equivalent to computer hardware. It abstracts a lot of hardware details, programs can process data in a uniform way, and programmers can avoid many hardware details. On the other hand, ordinary users see the operating system
as a resource manager. With its help, users can organize their own data in a way that is easy to understand and complete their work. And share resources with others.

Linux supports multitasking in a unified way, and this method is transparent to user processes. Each process runs as if it had only one process running on the computer, monopolizing memory and other hardware. Resources, in fact, the kernel runs several processes concurrently, and allows several processes to use hardware resources fairly and reasonably, and also enables each process to operate without interference with each other.