Linux is now by far the most widely used server Operating System on the web, scaling from mobile phones to powering over 90% of the world's top 100 supercomputers and has superseded traditional UNIX and Microsoft Windows alike. Linux is supported and cooperatively developed by many the world's major technology and hardware companies including IBM, Intel, AMD, Google and Microsoft as well as spawning its own such as Red Hat and Canonical. As a result, Linux is now the commodity OS of choice, forming the basis of many free and commercially developed systems. The strength of Linux lies in its versatility, reliability, security and accessibility making it the ideal platform for cloud applications, web and email hosting, security products, virtualisation and as the basis for intelligent appliance products.