Abstract
The paper is a brief introduction of the cloud computing perspective for the coming future in which the enterprise level computing is set to a very small cost effective computation in which the cost of establishment is reduced by a huge factor. In the paperthe basic introduction of the Cloud Computing, modals,charactersticks, architecture , elements , security ,features , technologies , difference between cloud and grid , problems in cloud , issues , difficulties , effects ,objectives , essentials , and some case studies on cloudcomputing is given. The conclusion is highlighted which yields a much more secure and cost effective paradigmcalled as Cloud for effective computation and a distributed application based on a very small investment from large enterprises thereby reducing the bulk cost and pricing of are extended to be accessible through the Internet. The cloud applications use large data centers and powerful servers that host Web applications and Web services. Anyone with a suitable Internet connection and a standard browser can access a cloud application. A cloud is a pool of virtualized computer resources. Which can perform the following task as :
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