International Journal of Advanced Research in Computer Science & Technology (IJARCST)
Cloud computing is one of the most emerging and important concept among IT field in current era. Cloud computing a heavy word, it's a service of computing accomplished by the Internet which is powerful in the field of architecture. Cloud provides enormous services to users, which are universal in nature in comparison with the grid computing. Cloud is independent of location, service and software to systems and devices is accomplished through shared servers. In this paper, given a review on cloud computing evolution, it is comparison with grid computing and various approaches to cloud.