Linux kernel: Linux is an open source computer operating system kernel. It is a Unix-like operating system written in C language and compliant with POSIX standards. Linux was first developed by Linus Torvalds of Finland in an attempt to provide a free Unix-like operating system on the Intel x86 architecture. The project started in 1991, with some Minix hackers assisting in the early days of the project, and today countless programmers around the world are helping the project for free.

Linux was first designed by Finnish Linus Torvalds. At that time, due to the commercialization of UNIX, Professor Andrew Tannebaum developed the Minix operating system so that it could not be bound by the AT&T license agreement and provide an operating system for teaching and research.

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Linux renamed the standard GNU license agreement Copyleft to contrast it with Copyright. The General Public License (GPL) allows users to sell, copy and change applications with copyleft. Of course, these programs can also be Copyrighted, but you must allow further sales, copies, and changes to the code, and you must also allow others to obtain the modified source code for free. Facts have proved that the GPL played a huge role in the success of Linux. It launched a very prosperous commercial Linux phase, and also provided a cohesive force for programmers, inducing everyone to join this Linux movement full of philanthropy.

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