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Kernel (operating system) - Wikipedia
The Linux Kernel Archives
Kernel in Operating System - GeeksforGeeks
What is a kernel? The kernel’s role in the operating system
What is a Kernel? Types of Kernels - TechTarget.com
What is the Linux kernel? - Red Hat
What Is a Kernel? - Codecademy Blog
Linux kernel - Wikipedia
What Is a Kernel? Kernel Uses and Types Explained - phoenixNAP
The Linux Kernel documentation