what is cloud computing?

Hi! Cloud computing is the delivery of computing and storage capacity as a service to a community of end-recipients. The name comes from the use of a cloud-shaped symbol as an abstraction for the complex infrastructure it contains in system diagrams. Cloud computing entrusts services with a user's

Very Well explained by Nitin about the Cloud Computing. As name Cloud is concerned you don't know which cloud is making it raining similarly From which server u r getting the platform, applications and services u don't know.