What is cloud computing, its origin, development and trend in China?

Cloud computing is a mode of increasing, using and delivering related services based on the Internet, which usually involves providing dynamically scalable and often virtualized resources through the Internet. Cloud is a metaphor of network and internet. Cloud computing service means that we store data in the server on the network through the network services we use, browse the web pages of these services through the browser, and use the above interfaces to carry out various calculations and work.

Cloud computing can be considered as including the following service levels: Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS).

At present, cloud computing in China presents the following three typical characteristics: 1.205438+00 has entered the substantive development stage from the concept propaganda stage; 2. It is in the experimental stage of private cloud research and development, and plans to change to public cloud; 3. Informatization of small and medium-sized enterprises is the core driving force for the development of public cloud.

Since 2009, cloud computing in China has entered a substantial development stage, and various forces are promoting the development of cloud computing. These promoters include multinational equipment manufacturers represented by IBM, EMC and Intel. , promote solutions, expand and occupy the market; Shanghai, Beijing, Tianjin, Wuxi, Dongying and other local governments have built some cloud computing centers to build government official cloud and public cloud for SMEs. Domestic Internet companies, such as Sina, Tencent, Alibaba, Century Internet, etc., improve IT facilities internally and provide services externally to reduce costs and expand business scope. Traditional telecom operators, such as China Mobile and China Telecom, have the short-term goal of building a private cloud for the operation support system, integrating internal resources, saving energy and reducing consumption, and realizing the old and reformed. In addition, there are software companies represented by Kingdee, Golden Abacus and Baihui. Before the concept of cloud computing appeared, these companies had begun to provide SaaS services.

Cloud computing is a business model that provides services based on the Internet. The development level and network quality of the Internet are very important to the development of cloud computing business. At the same time, cloud computing represents the change from providing products to providing services, which requires not only the change of users' concepts, but also the establishment of cooperative relations between providers and users based on legal system protection and mutual trust. From these two points of view, the development of cloud computing in China is still facing great challenges.