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The kernel of an operating system is the core component of the operating system that manages system resources such as the CPU, memory, input/output devices, and file systems. It is responsible for providing basic services and functionality to the rest of the operating system, as well as to the applications that run on it.

The kernel serves as a bridge between the software applications and the hardware of the computer. It provides an interface for applications to interact with the hardware, abstracting away the low-level details of the hardware and providing a standardized interface that applications can use. This helps to ensure that applications can run on a variety of hardware platforms without needing to be rewritten for each one.

The kernel also provides a mechanism for managing processes, which are the individual programs and services that run on the computer. It allocates system resources such as CPU time and memory to processes and provides a mechanism for processes to communicate with one another and with the kernel itself.

Overall, the kernel is a critical component of any operating system, and its design and implementation can have a significant impact on the performance, stability, and security of the entire system.

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