Cloud Computing

Cloud computing is a relatively new way of referring to the use of shared computing resources, and it is an alternative to having local servers handle applications. Cloud computing groups together large numbers of compute servers and other resources and typically offers their combined capacity on an on-demand, pay-per-cycle basis.

Cloud computing is fully enabled by virtualization technology and virtual appliances. A virtual appliance is a type of application image — an application combined with just enough operating system (JeOS) for it to run optimally in a virtual environment. In a cloud computing environment, a virtual appliance can be instantly provisioned and scaled as needed, without complex configuration of the operating environment.