Summary for comparison of cloud computing and grid computing

Cloud computing as a next-generation computing model in scientific computing and commercial computing plays an important role by the widespread concern of the academic and business circles.Cloud computing differs from traditional personal computers for the local computing.By constructing one or more connected,a large number of ordinary machines and network devices,data center,vast amounts of data stored in the data center.it can provide safe,reliable,efficient and transparent data storage and computing services in up layer services and applications.Based on the relevant literature,this paper conducted in-depth discussion on cloud computing and grid computing in architecture,the computational model,programming model,a more accurate and in-depth understanding of the concept of cloud computing could be obtained.