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Kernel

nounid 3062·updated May 9, 2026
candidate

The essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. 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.

Classifications

Entity Type

System90%rule-basedr:entity.system.compute.v1

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Kernels
possessive
Kernel's
pluralpossessive
Kernels'

Framework definitions

SANS Glossary of Security Terms1 senseview framework →
§1
The essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. 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.

Outgoing relationships

No outgoing triples
This term is not the subject of any RDF-style relationship yet.

Incoming relationships

No incoming triples
No other term currently asserts a relationship to this one.