Information, Computer and Network Security Terms Glossary and
Dictionary
Kernel
Kernel is the essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A kernel can be contrasted with a shell, the outermost part of an operating system that interacts with user commands. Kernel and shell are terms used more frequently in Unix and some other operating systems than in IBM mainframe systems.
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Kernel
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