Review paper on Cloud Computing

Abstract “Cloud computing” is recent buzzword in IT world. The future of computing in technical as well social perspective is shown by the phrase. Cloud computing based on the concept of centralizing computation and storage in distributed data centers maintained by third party. This application is much more than simple internet. The main purpose of cloud computing is to provide IT as a service on demand with feature of greater flexibility, scalability, availability, reliability to the cloud users at low cost. Through this user can access the resources they actually reside at the location other than user’s own computer or other Internet connection devices. This new concept has benefits like to be used in the field of egovernance or in rural development of country like India. Finally we discuss some of the issues that this area should be dealt. Cloud computing relies on sharing of resources to achieve coherence and economics of scale cloud computing also focuses on maximizing the effectiveness of the shared resources. Cloud computer resources are usually not only shared by multiple users but are also dynamically reallocated per demand.