Comparing Researh of Cloud Computing and Grid Computing

Grid computing a computing mode of merging scattered resources and realizing resources sharing and cooperative working;Cloud computing is the development of Grid computing,parallel computing and distributed computing,is a new business computing mode.It has some new characters,compared with grid computing.On the base of grid computing and cloud computing,Research the differences between grid computing and cloud computing,from kinds of degrees such as protocol architecture,direction of concentrating,resources management,and job scheduling.Using business concept,mature resource virtualization and not standardized specification make cloud computing different with grid computing in protocol architecture,resources management and job scheduling,etc,which make it more suitable to provide users with on-demand service.But in terms of security still need improvement.