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Camerareadycopy-ICGICT-403-Cloud Computing (Networks)

S. Kalaichelvi

Cloud Computing is a paradigm in which information is permanently stored in servers on the Internet and cached temporarily on clients that include desktops, entertainment centers, tablet computers , notebooks , wall computers , handhelds , sensors, monitors etc. Cloud computing incorporates software as a service (SaaS) , Web 2.0 and other recent, well-known technology trends, in which the common theme is reliance on the Internet for satisfying the computing needs of the users. In cloud computing, we don't need to have our own resources, but can build applications on others resources too, down-sizing or scaling up according to your needs. Bit-torrent and Skype are successful cloud computing initiatives, but a lot of action is still waiting to happen in this field. In the next few years, cloud computing is going to be very critical, and software as a service will become the more prevalent model. It can be used for scientific applications where there is no outlay for high-end resources, and is even beneficial for colleges in India, which cannot afford expensive hardware. Some major service providers include Amazon, Google, Yahoo, Sales force. The cloud computing architecture can be viewed in two ways front end and back end. The front end which includes a simple PC with internet connection where the user can access his section of data. The back end includes the server and the data center of the cloud service provider