The Linux kernel is the core component of the Linux operating system. It is a free and open-source software that was initially created by Linus Torvalds in 1991 and is now maintained by a large community of developers.

The kernel is responsible for managing system resources such as the CPU, memory, and input/output devices, and provides an interface between the hardware and software layers of the system. It also provides essential services such as process management, network communication, and file system access.

The Linux kernel is designed to be modular, meaning that it can be customized and configured to meet the specific needs of different systems and environments. It is highly portable and can run on a wide range of hardware architectures, from small embedded devices to large supercomputers.

Because the Linux kernel is open-source, anyone can view, modify, and distribute its source code, which has led to the development of many different distributions of Linux, each with their own unique features and characteristics. The Linux kernel is widely recognized for its stability, security, and performance, and is used by millions of users and organizations around the world.

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