Date Added: Dec 2011
Cloud computing has become a scalable service consumption and delivery platform in the modern IT infrastructure. Cloud computing is a style of computing which must cater to the following computing needs: dynamism, abstraction and resource sharing. In this paper, architecture, types of cloud, barriers to cloud, and creating an instance in Amazon has been discussed. Besides, the usage of traditional enterprise datacenter utilization, virtualized enterprise datacenter utilization and Cloud enterprise datacenter utilization are compared. Cloud computing is the fifth generation of computing after mainframe, personal computer, client-server computing and Web. Cloud computing is relatively a new technology that changes the way IT services are delivered to the organizations.