The Linux History

The Linux Story reads like a modern-day fairy-tale: in 1991 the finish computer science student, LINUS TORVALDS begins programming his own version of Unix. In the rapidly spreading Internet he published not only the binaries, that is, the runnable programs in machine language, but also the source code belonging to htem. And indeed, hundreds of programmers from all around the world took up his invitation to work on the development of Linux- without payment and in their spare time. It is not driven by commercial interest, but by the pleasure of solving problems alone and in a team, and of adding new functions to try and perfect the operating system. The only condition: the work including the modified source code must be made available to the general public. The legal basis for this is provided by the GNU General Public License (GPL) found in appendix G.

What is a Routers?

Routers are the most complicated of the three devices thus far, operating at the Netork Layer of the OSI model. While bridges are limited to examining data packet MAC addresses, router go beyond this and can examine the network address–which has routing information encoded in it. Routers can use this information to make intelligent decisions about routes and paths.