Cloud computing has emerged as a technology that has surrounded us. The technology has become backbone within few years. Earlier technology which was used in networking was distributed computing. The cloud computing has change whole situation at present. With cloud computing virtual network, the capability of handling million of users becomes easy. The main characteristics cloud possesses are scalability, location independence and virtualization. These characteristics have attracted many IT giants like Amazon, Microsoft, Google, Intel, VMware etc. . Amazon is now providing two services first Amazon S3 a Simple Storage Service and Amazon EC2 Elastic Cloud Computing. This paper gives an overview of the technology which comprises of introduction to cloud computing, its service model, deployment model, platforms, roystonea pluggable interface, security issues, benefits and TCG remote attestation. The paper also describes about energy consumption by cloud infrastructure and the amounts spend on cooling infrastructure.

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Cloud Computing Virtualization Security Issue Property Based Remote Attestation Energy Consumption.