By using Internet technology cloud provides virtualized IT resources as a service. Cloud Computing is a combination of Grid computing and Cluster computing. By using the Internet a computer grid is created whose purpose is only utilizing shared resources such as on a payper-use model, computer software and hardware. The main moto of cloud computing is that you can access your data in any corner of the world by using internet. Cloud computing is a general term for delivering through the internet. Cloud computing is a virtualized computer power and storage delivered via platform-agnostic infrastructures of abstracted hardware and software access over internet. Cloud computing systems usually work on various models like public, private, hybrid, and community models.

Keywords : Cloud Architecture, Cloud Characterstics, Cloud Computing uses, Cloud Deployments Models, Used Technologies.