Linux is both the most well known and most used of the open source operating systems. It was developed from Unix, and named for one of the early developers of the kernel, Linus Torvalds. Linux is built upon, uses, and provides code for the GNU project, which was originally started to create a free version of UNIX. The GNU project supports many open source projects besides Linux. The language gained popularity slowly, with distributions created by different groups emerging. Some of the distributions were created to make Linux more user friendly for the average user, including providing a graphic interface looking very much like Microsoft Windows. It is also now supported by many hardware manufacturers.
Bright Hub articles in the Linux channel cover beginning to use Linux, information on different distributions, reviews of Linux applications, tutorials for programming hardware running Linux and more. Linux is free and open in the sense that all of the source code is freely available, and anyone one can build upon it. Some companies have built businesses around it, providing support for the software and materials on how to use it, proving the free software movement also provides viable business models
Linux is very versatile, and has been adapted to use on mobile phones, eBook readers, personal computers, and servers. Possibly more servers run operating systems that are some variant of Linux than any other operating system. At Bright Hub, we offer a guide to the site's best articles covering aspects of Linux.
image found at Wikipedia commons Tux cc-by-sa Larry Ewing, Simon Budig and Anja Gerwinski