International Journal of Computer Applications
Now-a-days, cloud computing has become a key technology for online allotment of computing resources and online storage of user's data in a lower cost, where computing resources are available all the time, over the internet with pay per use concept. Cloud computing is business oriented concept where computing resources are outsourced by cloud provider to their client, who demand computing online. There is various advantage of cloud computing including virtual computing environment, on-demand services, maximize resource utilization and easy to use services etc. But there are also some critical issues like security, privacy, load management and fault tolerance etc. In this paper, the authors are providing an overview of cloud technology and its components.