The survey and research on application of cloud computing

Cloud computing has now become the largest hearing field and question in IT industry and each industry join in the development of cloud. This article studies the popular cloud platforms and cloud services on the basis of three types of cloud services, introduces the Google´s cloud computing technology - GFS, MapReduce, Bigtable which has the most application prospects. And it analysis the application scene and prospect of the three types of clouds, forecasts that the cloud technology is the most mainstream development direction in IT in 21 century. And cloud computing offer opportunities and challenges not only to the IT manufacturers but also to every country.