What is Cloud Computing? What does cloud mean?

Cloud computing (cloud

computing) is a model for the addition, use, and delivery of Internet-based services, typically involving the provision of dynamically scalable and often virtualized resources over the Internet. Cloud is a metaphor for the network, the Internet. In the past, clouds were often used to represent telecommunication networks in diagrams, and later they were also used to represent the abstraction of the Internet and the underlying infrastructure.

As a result, cloud computing allows you to experience even 10 trillion operations per second, which is so powerful that you can simulate nuclear, climate change, and market trends. Users access the data center through computers, laptops, mobile phones, etc., and perform calculations according to their own needs.

The so-called "cloud" is cloud. It's not just the meaning of clouds in the sky. There are also implicit meanings, such as a group, a bunch and so on.

In fact, this cloud can be understood as a piece, a group (group), but this is a dynamic group, a computing group belonging to the Internet, which can have supercomputers or ordinary computers - this is not important, the important thing is that this computing cluster can provide you with certain computing services; Summary: The cloud is a computing cluster on the Internet that provides computing services.

Cloud computing is the model for the addition, use, and delivery of Internet-based services, typically involving the provision of dynamically scalable and often virtualized resources over the Internet. Cloud is a metaphor for the network, the Internet. Cloud computing services refer to the network services we use, store data in the server on the network, browse the web pages of these services through the browser, and use the above interface to perform various calculations and work.

Cloud computing is a type of distributed computing, which refers to the decomposition of huge data computing and processing programs into countless small programs through the network "cloud", and then processed and analyzed through a system composed of multiple servers, and the results are obtained and returned to users. In the early days of cloud computing, to put it simply, it was simple distributed computing, which solved the task distribution and merged the calculation results. Therefore, cloud computing is also known as grid computing.

With this technology, the processing of tens of thousands of pieces of data can be completed in a very short time (a few seconds), thus achieving a powerful network service.

It is a variety of computing resources.

By distributing computing across a large number of distributed computers, rather than local computers or remote servers, enterprise data centers will operate more like the Internet. This enables enterprises to switch resources to the applications they need, accessing computers and storage systems on demand.

It's like moving from the old single-generator model to a centralized power supply model in a power plant. It means that computing power can also be circulated as a commodity, just like gas, water and electricity, which is easy to access and inexpensive. The biggest difference is that it is transmitted over the Internet.

Cloud computing can be thought of as including the following levels of services: Infrastructure as a Service IaaS, Platform as a Service PaaS, and Software as a Service SaaS. The so-called level of stuffiness and breadth here is the level in the sense of hierarchical architecture.

IaaS, PaaS, and SaaS are implemented at the infrastructure layer, the software open runtime platform layer, and the application software layer.

Cloud computing has the following main characteristics: dynamic resource allocation, self-service of demand services, network-centric, measurable services, and pooling and transparency of resources.