Date Added: Oct 2013
Cloud computing is a paradigm of computing, a new way of thinking about IT industry but not any specific technology. It is a paradigm shift whereby details are abstracted from the users who no longer need knowledge of, expertise in, or control over the technology infrastructure \"In the cloud\" that supports them. The main concept of cloud computing services is that these services are carried out on behalf of users with hardware that the customers do not own or operate. The user inputs data to the cloud, the data are processed by the cloud service provider according to the instructions of the user, and the output is delivered back to the user.