How did Cloud Computing evolve??
After the need was felt for huge computing power the IT development moved towards building PARALLEL COMPUTING (click) where one job is divided and send to nodes,next came CLUSTER COMPUTING(click) where the computers together used the resources and did the job faster and efficiently.After grid computing was developed the need was felt for a model where the user will just have to worry about the job to be done.The hardware for data storage,Platform for computing and services would be provided by other vendors.This model is called Cloud computing.