What are the main service forms of cloud computing?

The main service forms of cloud computing are: 1. Software as a service; 2. Platform as a service; 3. Information as a service. Among them, information as a service refers to providing the manufacturer's cloud infrastructure composed of multiple servers as a metering service to customers.

The main service forms of cloud computing: SaaS (Software as a Service), PaaS (Platform as a Service), IaaS (Information as a Service).

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SaaS service providers uniformly deploy application software on their own servers, and users order applications from manufacturers through the Internet based on their needs. For software services, the service provider charges based on the quantity of software ordered by the customer, the length of time and other factors, and provides the software to the customer through the browser. The advantage of this service model is that the service provider maintains and manages the software and provides hardware facilities for running the software. Users only need to have a terminal that can access the Internet to use the software anytime and anywhere.

Under this model, customers no longer spend a lot of money on hardware, software, and maintenance personnel like the traditional model. They only need to pay a certain rental service fee and can enjoy the corresponding hardware and software through the Internet. and maintenance services, which is the most efficient operating model for network applications. Salesforce.com and Google Apps both fall into this category.

PaaS is a distributed platform service. The manufacturer provides development environment, server platform, hardware resources and other services to customers. Users customize and develop their own applications based on its platform and deliver them to customers through its server and the Internet. other customers. PaaS can provide enterprises or individuals with a research and development middleware platform, providing application development, database, application server, testing, hosting and application services. Google App Engine platform, 800APP of 800 customers is the representative product of PaaS.

IaaS provides the manufacturer's "cloud" infrastructure composed of multiple servers as a metering service to customers. It integrates memory, I/O devices, storage and computing capabilities into a virtual resource pool to provide the entire industry with needed storage resources and virtualized servers and other services. This is a managed hardware approach in which users pay to use the manufacturer's hardware facilities. The advantage of IaaS is that users only need low-cost hardware and can rent corresponding computing power and storage capacity on demand, which greatly reduces users' hardware expenses. Amazon Web Services (AWS), IBM's BlueCloud, etc. all rent infrastructure as services.

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