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What is LUNUX ?

Linux is the best-known and most-used open source operating system. Linux is the set of programs, tools, and services that are typically bundled together with the Linux kernel to provide all of the necessary components of a fully functional operating system. Free Software Foundation; refer to this collection as GNU/Linux, because many of the tools included are GNU components.

What is the Linux Kernel?

A kernel is the lowest level of easily replaceable software that interfaces with the hardware in your computer. It is responsible for interfacing all of your applications that are running down to the physical hardware, and allowing processes, known as servers, to get information from each other IPC.