What is Kernel?

The most important part of an operating system (OS), the kernel controls most of the components and functions of a computer, smartphone, or related hardware device. Every OS has a kernel inside it that connects the hardware to the software and processes of the device. The kernel determines how the central processing unit (CPU) operates, monitors and manages storage memory, handles software requests, and handles other key functions and tasks necessary for a device to function optimally and reliably.