What is Kernel and how is it different from operating system?

If you use computers then you must have heard the name of Kernel. But do you know what Kernel is? Where is it needed? If not then by the end of today's article you will know about all the things related to Kernel. Stay tuned with us for complete information.

This kernel is a very important center of a computer operating system (OS). It is a core that provides all the basic services to different parts of the OS. This is the main layer between OS and hardware, which helps in process and memory management, file systems, device control and also networking.

A kernel is most often compared with a shell, which is actually an outermost part of the OS that interacts with user commands. Kernel and shell are terms that are more often used in Unix OSes, in lieu of an IBM mainframe or Microsoft Windows systems.

Whereas a kernel should not be confused with one of the basic input / output system (BIOS), but it is an independent program that is stored in a chip on the computer's circuit board.

So today I thought why should you all be provided complete information about what the kernel is and how it works. With this, you can get to know about the part of this basic C computer. So let's start without delay.

The operating system provides us with a graphic interface so that we can give commands to the computer system. But the system cannot directly understand these commands. Therefore, the code is translated into binary language for which the core component of the operating system is used, it is called Kernel.

We deal with the lowest layer of the user kernel and the same kernel again deals with the system.

Kernel plays the role of a mediator between system hardware and software. This kernel is not an operating system (OS); Rather it is a central module of the operating system. This is the first program that is loaded in the protected memory area during the booting process. It remains in that memory as long as the system power is on.

This kernel is a low-level abstraction layer. The user's operation uses a system to interact with the system. System calls invoke kernel, and then kernel executes the user's operation.

Kernel manages other processes of the same system like process management, memory management, device management, I / O management.

What does the kernel do?

Like I have already said that a kernel is the core component of the operating system. It acts as a bridge using interprocess communication and system calls, between applications and data processing which is performed in the hardware level.

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When an operating system is loaded into memory, then the kernel is first loaded and remains in memory until the operating system is shut down again. This kernel is responsible for all low-level tasks such as disk management, task management and memory management.

Overall, a computer kernel interface provides three major computer hardware components, and also provides services to the application / user interface, CPU, memory and other hardware I / O devices.

Along with providing kernel, it also manages computer resources, so that it can allow it to run other programs and use these resources. It also sets up memory address space for kernel applications, loads files from application code into memory, sets up execution stack for programs and branches out with it to execution of particular locations within programs.

What are the features of Kernel?

Let's know about the features of kernel.

It is a core component of the operating system without which the OS cannot function.

We can also call Kernel the nervous system of OS.

This is the central core of the Operating System.

It controls everything in the OS including I / O Management, Process Management etc.

It acts as a bridge between applications and actual data processing which is happening in the hardware level.

It is an interface between user applications and hardware.