what is linux kernel

what is linux kernel

The kernel is a program that constitutes the central core of a computer operating system. It has complete control over everything that occurs in the system. Since the kernel communicates directly with the hardware, the parts of the kernel must be customized to the hardware features of each system. However, the kernel does not deal directly with a user. Instead, the login process starts up a separate, interactive program, called the shell, for each user.

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