Cloud computing is a form of Internet-based computing that provides shared computer processing resources and data to computers and other devices on demand. If you use an online service to send email, edit documents, watch movies or TV, listen to music, play games or store pictures and other files, it is likely that cloud computing is making it all possible behind the scenes. Cloud Computing uses are Create new apps and services, Store, back up and recover data, Host websites and blogs, Stream audio and video, Deliver software on demand, Analyse data for patterns and make predictions. Microsoft is a leading global provider of cloud computing services for businesses of all sizes.