Cloud computing is another great change following the big shift from mainframe computers to client-servers in the 1980s. Cloud computing (Cloud Computing) is distributed computing (Distributed Computing), parallel computing (Parallel Computing), utility computing (Utility Computing), network storage (Network Storage Technologies), virtualization (Virtualization), load balancing (Load Balance), Hot backup redundancy (High Available) and other traditional computer and network technology development and integration products.
Cloud computing (cloudcomputing) is an increase, use, and delivery model of Internet-based related services, usually involving the provision of dynamic, easily scalable and often virtualized resources through the Internet. What are the characteristics of cloud computing? Let's take a look!
Five characteristics of "cloud computing":
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Large-scale, distributed:
"Cloud" generally has a considerable scale, and some well-known cloud providers such as Google Cloud Computing, Amazon, IBM, Microsoft, Alibaba, etc. also have the scale of millions of servers. The "cloud" built by these distributed servers can provide users with unprecedented computing power.
Virtualization
Cloud computing will use virtualization technology. Users do not need to pay attention to specific hardware entities. They only need to select a cloud service provider, register an account, log in to their cloud console, and purchase and configure the services you need (such as
cloud Server, cloud storage, CDN, etc.), and after doing some simple configuration for your application, you can make your application serve externally, which is simpler and more convenient than the traditional deployment of a set of applications in the enterprise data center Much. And you can control your resources through your PC or mobile device anytime, anywhere, just like the cloud service provider provides an IDC (Internet
Data Center) for every user .High availability and scalability
Those well-known cloud computing providers generally adopt measures such as fault tolerance of multiple copies of data and interchangeability of computing nodes to ensure high reliability of services. Cloud service-based applications can continue to provide services to the outside world (7*24 hours), and the scale of the "cloud" can be dynamically scaled to meet the needs of application and user scale growth.
On-demand service, more economical
Users can purchase services according to their needs, and can even perform accurate billing based on usage. This can greatly save IT costs, and the overall utilization of resources will also be significantly improved.
Safety
Network security has become a problem that all enterprises or individual entrepreneurs must face. It is difficult for corporate IT teams or individuals to deal with malicious attacks from the network, and the use of cloud services can effectively reduce security risks with the help of more professional security teams.
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Regarding the bits and pieces of "cloud computing" that have been deeply embedded in our lives, the apps or websites that are commonly used in ordinary times are basically inseparable from the powerful service support behind "cloud computing", such as the love and hate of the party Taobao, JD, socially obsessed with the party WeChat, Weibo, etc.