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Cloud Computing is becoming a rapidly accepted and deployed paradigm both by individuals and organizations alike. The government of various countries is also moving its services to cloud to offer better and just in time services to the users. This chapter explores the basic concepts of Cloud Computing, which includes the main features of Cloud Computing, the cloud deployment models, the services offered by the cloud, motivations behind adoption of cloud by organizations, in general and by the Government, in particular. We also lay an insight into the various Cloud Computing initiatives taken by the Government of India to facilitate its citizens with easy access to information/services.

Cloud Computing uses Hadoop framework for processing BigData in parallel. The Hadoop Map Reduce programming paradigm used in the context of Big Data, is one of the popular approaches that abstract the characterstics of parallel and distributed computing which comes off as a solution to Big Data. Improving performance of Map Reduce is a major concern as it affects the energy efficiency. Improving the energy efficiency of Map Reduce will have significant impact on energy savings for data centers. There are many parameters that influence the performance of Map Reduce . Various parameters like scheduling, resource allocation and data flow have a significant impact on Map Reduce performance. Cloud Computing leverages Hadoop framework for processing BigData in parallel. Hadoop has certain limitations that could be exploited to execute the job efficiently. Efficient resource allocation remains a challenge in Cloud Computing MapReduce platforms. We propose a methodology which is an enhanced Hadoop architecture that reduces the computation cost associated with BigData analysis.

Cloud Computing is becoming a rapidly accepted and deployed paradigm both by individuals and organizations alike. The government of various countries is also moving its services to cloud to offer better and just in time services to the users. This chapter explores the basic concepts of Cloud Computing, which includes the main features of Cloud Computing, the cloud deployment models, the services offered by the cloud, motivations behind adoption of cloud by organizations, in general and by the Government, in particular. We also lay an insight into the various Cloud Computing initiatives taken by the Government of India to facilitate its citizens with easy access to information/services.