What is a server?
A computer software that manages resources and provides services to users, usually divided into file servers (enabling users to access files on other computers), database servers, and application servers.
The computer running the above software is also called a network host (Host).
Servers usually use the network as a medium,Server rack cabinet and can provide services internally through the local area network or externally through the wide area network. The biggest feature of the server is its powerful computing power.
This magical thing is probably a black box with strong capabilities. Any network service we do that needs to be connected to the Internet must go through the server.
What is the role of the server?
Wikipedia: The composition of a server includes a processor, hard disk, memory, system bus, etc. It is similar to a general computer architecture, but due to the need to provide highly reliable services, processing power, stability,rack 42u reliability, security, and scalability , manageability and other aspects have higher requirements. In a network environment, according to the type of services provided by the server, it is divided into file server, database server, application server, WEB server, etc.
Through this, we know that the server actually includes functions such as storing data and processing data,server rack server and is the center of the intersection of all network behaviors. By developing a magical hand, we can draw messy data one by one into a data network, and then output it to achieve the desired results of the product. Effect.
Cloud servers and physical servers?
We purchase cloud services online, and provide us with the services that the server can provide from the service provider's huge resource pool. We do not need to buy physical servers, and we do not need to maintain them too much. Alibaba Cloud is responsible for the maintenance of the servers, and we are the users.
The advantage of cloud services is that they are cheap, but companies that attach great importance to data security may choose physical servers.
Looking at it this way, in fact, no matter what kind of server, their functions are basically the same, but the company chooses the one that is more suitable for itself based on its own needs. At present, I have seen small companies or companies without technical personnel choosing to purchase cloud services. Slightly larger companies or companies that value data will buy physical servers.
