Cloud computing and its key techniques: Cloud computing and its key techniques

Cloud computing is a new computing model;it is developed based on grid computing.The authors introduced the development history of cloud computing and its application situation;compared existing definitions of cloud computing and gave a new definition;took google's cloud computing techniques as an example,summed up key techniques,such as data storage technology(Google File System),data management technology(BigTable),as well as programming model and task scheduling model(Map-Reduce),used in cloud computing;and analyzed the differences among cloud computing,grid computing and traditional super-computing,and fingered out the broad development prospects of cloud computing.