引言最早从企业层次提出云计算(Cloud Computing)的是Dell公司,但对云计算概念产生较深影响的是IBM公司与Google公司的并行计算项目和云计算先行者亚马逊EC2产品,随后越来越多的媒体、公司、技术人员开始追逐云计算,甚至将很多IT创新都放入云计算概念中,使得云计算概念和产业得以推动和发展,形成了如今包括IaaS Introduction The earliest enterprise-level cloud computing was Dell, but the deeper implications for cloud computing were the parallel computing projects from IBM Corp. and Google Inc. and Amazon EC2 products, the forerunner to cloud computing, and more then Of the media, companies, technicians began to chase cloud computing, and even a lot of IT innovation into the concept of cloud computing, cloud computing concepts and industries to promote and develop, formed today include IaaS