Kernel is a computer program that is the core of a computer's Operating System, with complete control over everything in the system.

On most systems, it is one of the first programs loaded on start-up (after the bootloader) and handles the rest of start-up as well as input/output requests from software, translating them into data-processing instructions for the Central Processing Unit.

Kernel handles memory and peripherals like keyboards, monitors, printers, and speakers.

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