Technical staff how can not speak clearly cloud computing, our senior director was once so and government leaders to popularize the knowledge of cloud computing and smart cities, but all understand: you married a wife, which is called traditional IT architecture. Think a wife is not enough, it is called the plight of the traditional enterprise CIO. Married another wife, it's called a dual-live data center. You married another small wife in the field, it is called two places three centers disaster recovery. Marry so many little wives with different styles and temperaments that you form a harem, it's called a private cloud. Your harem is called a pool of computing resources. You select the knowledgeable and capable one from the harem to manage the other mistresses, which is called a private cloud management program. The one in charge is HYPERV or VMWARE. you don't take a concubine, you adopt many lovers instead, this is called a managed cloud. You are poor, no money to support anyone or marry a concubine, you choose to go to the bath center to solve the problem, this is called public cloud services for small and medium-sized enterprises. You have to pay public money while enjoying public cloud services, this is called hybrid IT architecture for SMEs. You are rich, but you also like to go to a high-class nightclub, this is called public cloud services for large enterprise users. ? You are rich, while keeping a concubine and a lover, and also go to the bath center, this is called a hybrid cloud. But in a hybrid cloud, the most critical business is still prudent to use traditional IT architecture. You have money, you have wives, but one day all the wives have their period, you still have to go to the bath center, this is called CLOUD BURST. bath center is the cloud service provider. The biggest local bathhouse is AWS. The high-end one, such as ****, is 18M. Local bathhouses are owned by two big bosses with backgrounds, who are OPENSTACK and CLOUDSTACK. Those with small venues and only use local or nearby technicians are local small and medium-sized cloud service providers. If there is no one at the top, it is difficult for local small and medium-sized cloud service providers to grow. The owner of the bath center has a government background, which is a city cloud. The owner of a bath center has a triad background, which is a telecom cloud. The bath center needs VIP card to let in, this is the industry cloud. The bath center only serves the owners of the district, this is the park cloud. Your little wives and lovers may expose you to financial problems because of conflicts, which is called private cloud security. You may catch a disease when you go to the bathing center, which is a public cloud security issue. This shows that the public and private cloud security issues are of two different natures. A bath center that only provides a place and requires you to find a technician is called IAAS, a bath center that provides a place and a technician is called PAAS, and a bath center that does what Dongguan ISO does is called SAAS, and a bath center that downloads an AV video of yourself jerking off is called VAAS, and a bath center that has a lot of people sharing their experiences is called the Open Data Center Alliance. The industry association of the bathing center is called CLOUD BUILDER. staying in a five-star hotel, you habitually use you use WeChat Stranger to book a place, which is called CLOUD FINDER. good women to go to the sea, which is called the cloud of traditional IT applications. You go to the bath center has a lot of experience, see the face to know the bath center to mention not to provide services, see the new technician can be inferred from the quality of service, this is called data analysis and mining. This is called data analysis and mining. You share this information and insights with others for a fee, and you are a big data service provider. A place does not crack down on bath centers, this is a smart city.