What is cloud computing?

What are the characteristics of cloud computing

Cloud computing is a pay-per-use model that provides available, convenient, on-demand network access and access to a configurable shared pool of computing resources (resources include networks, servers, storage, applications

software, services), these resources can be provisioned quickly with minimal management effort or minimal interaction with the service provider.

Cloud computing features: ultra-large scale, virtualization, high reliability, versatility, high scalability, on-demand services, and extremely cheap.

Virtualization concept: Virtualization is a technology that integrates, manages and reallocates computer hardware resource images through software means. Commonly used means include virtual machine-based virtualization and container-based virtualization.

Classification of virtualization scenarios: operating system virtualization, application virtualization, desktop application virtualization, storage virtualization, network virtualization, cloud computing and the difference between virtualization. To describe the difference between cloud computing and virtualization, there is a classic saying: Virtualization is the construction of cloud computing.

A major way of resource pooling.

As long as you understand this sentence thoroughly, you will know the relationship between them.

Simply put, cloud computing is a concept, not a specific technology.

Virtualization is a specific technology that refers to products that virtualize hardware resources to achieve isolation, scalability, security, and full utilization of resources.

At present, cloud computing mostly relies on virtualization. By virtualizing multiple servers, they form a resource pool to achieve simultaneous computing and resource sharing.