Linux vs Minix vs UNIX vs POSIX

First of All, What is Linux?

You see, there is a contradiction on what Linux really is. We see that people refer Linux as an Operating System but on the other hand, some people say that Linux is a kernel. Well, let’s put it this way.

In fact, Linux is a kernel written and named by Linus Torvalds which you can take a look from https://www.kernel.org/. When you think about it, kernel is a useless thingy if there is no software using it since kernel manages hardware based on software inputs.

At this point, we have a cute kernel with us.

On the other hand, Richard Stallman initiated GNU Project, aiming to create a free Operating System with free tools. They were pretty succesful with the mission but there was one thing missing. A proper kernel to manipulate hardware by these tools.

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