Linux is a free Unix-type
operating system originally developed by Linus
Torvalds and other programmers in 1991 while Linus was a student a the
University of Helsinki. He
began writing the code based on minix and then released it to the public so that
it could be improved upon. Other programmers in the spirit of GNU worked
together to develop what we now take for granted, a derivative of Unix
designed to be fast, small, and reliable and most importantly free.
under the GNU
General Public License, the source code for Linux is freely available
to everyone. Linux runs on many different hardware platforms including Intel,
Sparc®, PowerPC, and Alpha Processors. Hundreds of application programs have
been written for Linux, some of these by the GNU project. Linux's architecture
like LNA creates a more reliable system. Systems using protected memory and
pre-emptive multitasking are inherently more stable.
Because the source to Linux
is open source, it is easy to customize and to update rapidly (total cost of
ownership is also low). This flexibility has enabled Linux to run on everything
from handheld and embedded systems to clusters of hundreds of servers. LNA uses
on the server side (Linbox NetServer) an industry- standard platforms running
the Linux operating system.
At the heart of Linux is the kernel which basically
runs the show. The Linux kernel provides the basic services and device drivers
used by all other programs running on a Linux OS system. The latest kernels is 2.6.10.
Many tutorials on Linux Kernel are available at http://www.tux.org/lkml/.