The most important functional component of Linux is the Linux kernel, an operating system kernel first released on 5 October 1991 by Linus Torvalds.
Linux was originally developed as a free operating system for personal computers based on the Intel x86 architecture, but has since been ported to more computer hardware platforms than any other operating system.
UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity.
The one thing I stole was the hierarchical file system because it was a really good idea . . .
If you want to travel around the world and be invited to speak at a lot of different places, just write a Unix operating system.
Some consider UNIX to be the second most important invention to come out of AT&T Bell Labs after the transistor.
Warm regards from teachyoulinux.com.