Basic knowledge of cloud computing

1 What is IaaS? What is PAAs? What is SaaS?

IaaS (Infrastructure as a service), which is infrastructure-as-a-services, enables consumers to access services from a sophisticated computer infrastructure, known as infrastructure-as-a-service, and network-based services such as storage and databases as part of the IaaS. IaaS is typically divided into 32 uses: public cloud, private cloud, and hybrid cloud.

Note: Buy public, private, and hybrid clouds to gain access to infrastructure without the need to purchase machines and equipment to reduce device configuration and maintenance. Provide "Hardware"

PaaS platform-as-a-service (Platform as a Service,paas) provides consumers with the services that customers use to provide the development language and tools (such as Java,python. NET, etc.) developed or acquired applications deployed to the vendor's cloud computing infrastructure. Customers do not need to manage or control the underlying cloud infrastructure, including networks, servers, operating systems, storage , etc., but customers can control the deployed applications, or they may control the configuration of the managed environment that runs the application;

Note: Customers buy and deploy their own applications;

Software as a service (software as a Service,saas) provides customers with services that are operated by operators on the cloud infrastructure, and can be accessed through the client interface on a variety of devices, such as a browser. Consumers do not need to manage or control any cloud computing infrastructure, including networks, servers, operating systems, storage, and so on.

Note: Applications that provide cloud computing infrastructure;

Basic knowledge of cloud computing