1, Infrastructure as a Service (IaaS)
Infrastructure as a service is one of the main service categories, which provides virtualized computing resources, such as virtual machines, storage, networks and operating systems, to individuals or organizations of cloud computing providers.
2. Infrastructure as a Service (PaaS)
Platform as a service is a service category, which provides a platform for developers to build applications and services through the global Internet. Paas provides an on-demand development environment for developing, testing and managing software applications.
3. Software as a Service (SaaS)
Software as a service is also a kind of it service. It provides on-demand software payment applications through the Internet, and cloud computing providers host and manage software applications, and allow their users to connect and access applications through the global Internet.
Extended data:
The application of cloud computing:
Simple cloud computing technology has been widely used in today's internet services, and the most common ones are network search engines and network mailboxes.
Google and Baidu are the most familiar search engines. At any time, as long as you have used the mobile terminal, you can search for any resource you want on the search engine and enjoy the data resources through the cloud.
The same is true of e-mail. In the past, sending and writing an email was a troublesome thing and a slow process. With the popularization of cloud computing technology and network technology, email has become a part of social life. As long as it is in the network environment, it can realize the real-time delivery of mail. In fact, cloud computing technology has been integrated into today's social life.
Storage cloud, also known as cloud storage, is a new storage technology developed on the basis of cloud computing technology. Cloud storage is a cloud computing system with data storage and management as its core. Users can upload local resources to the cloud and connect to the Internet anywhere to obtain resources in the cloud.
As we all know, Google, Microsoft and other large network companies have cloud storage services. In China, Baidu Cloud and Wei Yun are the storage clouds with the largest market share. Storage cloud provides users with storage container services, backup services, archiving services and record management services, which greatly facilitates the management of resources by users. ?
Medical cloud refers to building a medical and health service cloud platform based on cloud computing, mobile technology, multimedia, 4G communication, big data, Internet of Things and other new technologies, combined with medical technology, to realize the enjoyment of medical resources and the expansion of medical scope.
Because of the combined application of cloud computing technology, medical cloud improves the efficiency of medical institutions and facilitates residents' medical treatment. Hospital appointment registration, electronic medical records, medical insurance, etc. are all products of the combination of cloud computing and medical fields. The medical cloud also has the advantages of data security, information sharing, dynamic expansion and national layout.
Baidu Encyclopedia-Cloud Computing