Abstract: It is a vision that sounds a lot like what we are calling cloud computing. One of the first milestones in cloud computing history was the arrival of Salesforce.com in 1999, which pioneered the concept of delivering enterprise applications via a simple website. Cloud computing is an internet based computing which has powerful computational architecture and it offers universal services to the customers and it has several benefits over grid and other computing. In this paper, we have given a review on evolution of cloud computing, its comparison with other computing.
Keywords: Cloud, Computer bureau, Fog Computing, Dew Computing.