Cloud Computing is a general term for anything that involves delivering hosted services over the Internet. Instead of a static system architecture, Cloud Computing supports the ability to dynamically scale up and quickly scale down, offering cloud consumers high reliability, quick response times, and the flexibility to handle traffic fluctuations and demand. Cloud Computing is an emerging technology that has an abstruse connection to Grid Computing paradigm and other relevant technologies such as utility computing, distributed computing and cluster computing. Cloud computing is the emerging technology. Cloud computing provides easy access and high-performance computing on the data. Another major challenge that today software companies face, is the storage of data at an affordable cost and make available all the time.