Linux is an Open Source implementation of UNIX which 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 an industry- standard platforms running the Linux operating system.