However, on the other hand, the server is actually a kind of computer after all, and it is also developed from PC. When the network was not very popular in the early days, there was no such name as server. At that time, there were only two categories in the whole computer field: mainframe computers and microcomputers. However, with the development and popularization of the network, especially the local area network, the middle-level computer "server" began to be accepted by the industry, and it continued to develop with the popularization and development of the network. However, the server is not exactly the same as the computer we usually see. Otherwise, among so many server manufacturers in China, few can really produce medium and high-end servers, and even few in the world have this strength. Dell can only produce some middle and low-end servers, which are caused by the special requirements of servers. These are the four main characteristics of the server (often referred to as the "four characteristics"). Although the server is composed of motherboard, CPU, memory, hard disk and so on. Just like PCs, these hardware are not used by ordinary PCs, but are specially developed for server environment, although they are basically similar in appearance. Because of this, the price of servers is usually high, ranging from tens of thousands of mid-range servers to tens of millions or millions of high-end servers. Of course, at present, we also see that many well-known servers are priced at only a few thousand yuan.