What is GNU/Linux?
Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Basically, Linux is just a kernel, not a complete operating system. With the assistance of the GNU organization, Linux eventually come to be a desktop or server OS, and it supports different CPU, for instance, i386, Pentium, PowerPC, Alpha, etc. Linux is also a open-source application. Developed under the GNU General Public License (GPL), the source code for Linux is freely available to everyone. You can modify it, fix it, add new modules to it, and then re-distribute it under the GNU license.