Cloud service is an increase, use and interaction mode of related services based on the Internet, which usually involves providing dynamically expandable and often virtualized resources through the Internet. Cloud is a metaphor of network and internet. In the past, cloud was often used to represent telecommunication networks, and later it was also used to represent the abstraction of the Internet and the underlying infrastructure. Cloud service refers to obtaining the required services in an on-demand and extensible way through the network. The service can be related to IT and software, Internet or other services. It means that computing power can also be circulated as a commodity through the Internet.
Cloud computing refers to the use of a large number of server resources on the cloud platform to run big data, in order to speed up the operation efficiency; Cloud computing is the foundation of cloud service, and service is the embodiment of product value.
Public and private clouds
Simply put, cloud services can put all the software, hardware and data needed by enterprises on the network, and use different IT devices to connect with each other anytime and anywhere to achieve data access, calculation and other purposes. At present, the common cloud services are PublicCloud and PrivateCloud.
The cost of public cloud is lower.
Public cloud is the most basic service, and multiple customers can enjoy the system resources of a service provider. They can enjoy professional IT services without setting up any equipment or providing managers, which is undoubtedly a good way to reduce costs for ordinary entrepreneurs and small and medium-sized enterprises. Public cloud can also be subdivided into three categories, including Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS) and infrastructure-as-a-service (iaas).