The kernel is the core component of the OS. It acts as the bridge between software and hardware. It decides which program gets to use the CPU, how much memory they get, and when they get it. Without the kernel, your computer is just a pile of metal and plastic.

"Kernel OS" is a popular "debloated" or "RIP" version of Windows 10 specifically optimized for gaming and high-end software. It is designed to maximize hardware performance by removing non-essential background processes.