Cloud computing

What is cloud computing? "Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility (like the electricity grid) over a network (typically the Internet)." Source Services include: SaaS: http://en.wikipedia.org/wiki/SaaS IaaS: http://en.wikipedia.org/wiki/IaaS#Infrastructure PaaS: http://en.wikipedia.org/wiki/Platform_as_a_service Key words: Data Security Privacy