What is the difference between a server and a normal computer?

What is the difference between a server and a normal computer?  

What is the difference between a server and a normal computer? _ Baidu Know
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Often receive Dell's ad mail, see the server configuration is not high, but the price is very expensive. Want to know, what is the difference between server and ordinary computer?

At present, the use of server owners and enterprises are also more, perhaps some people will feel the same. From the surface, the server and our daily use of the PC is composed of CPU, memory, hard disk and other parts, then the server and the ordinary computer what is the difference?
1, the server CPU design can continuously run for a long time, the basic design to be able to work all year round, and ordinary desktop-level CPU is 72 hours of continuous work and design.
2, the server CPU support multi-channel interconnection, simply said that 1 machines can be installed a lot of CPUs, ordinary desktop-level CPU does not support this way of working.
3, the server CPU is often the first to use advanced technology such as the recent in the ordinary desktop-level CPU L3 cache, the server CPU is very early use.
4, the internal instruction set will be different depending on the difference.
5, the two interfaces are also different, the general PC computer in their own home, pull the ordinary broadband, and servers are placed in the room, large bandwidth access.
6, Performance: The server needs to respond to the requests of many clients in a timely manner, and provide the corresponding services, the PC is generally operated by only a few, especially the network performance, if the PC is not networked, no network card, the PC is still a PC, and the server is not a network card is not a server, because, A server is defined as a computer system that provides services to other computers in the network.
7, graphic display, keyboard and mouse requirements: ordinary desktop and display, key mouse, etc. are one-to-one, and, generally, the performance of the graphics card, the server is not directly and user interaction on the graphics card Performance basic no requirements, the general keyboard and mouse display is common with multiple units.
8, extensibility: The PC generally does not need a lot of external card, the scalability requirements are not high, and the server generally need to consider increasing network cards, RAID cards, HBA cards, etc. in addition, the expansion also includes memory, hard disk and other storage bits, power, and even the expansion of the CPU, these are the characteristics of the server.
Server CPU Entry-level general is the ordinary CPU server, support multi-channel interconnection and long time, performance is not improved, higher prices. High-end is the use of a large number of advanced technology, the price is expensive. Server rental and server hosting services in the computer room server CPU is generally not suitable for home and entertainment, due to its own characteristics, high prices but the game performance is low, daily household will not run for more than a week.



Server is a kind of computer, it is a high-performance computer that provides different services to clients, it is under the control of the network operating system, it will be connected with the hard disk, tape drive, printer, modem and expensive dedicated communication equipment to the network over the client sharing, but also to provide network users with centralized computing , information dissemination and data management services.

Functionally speaking: The server, simply is to provide services for other computers computer, any configuration of the computer can be a server, such as your computer shared a folder, all other computer files are saved in this folder, then your computer is a file server , and professional servers provide many services, such as database services, DHCP services, DNS services, RAS services, Active Directory services, and so on.

From the hardware, the so-called server, is a service optimized for the PC, such as the server needs 24 hours of uninterrupted boot state, which requires the server has good thermal performance. Ordinary PC you open for one months do not shut down the machine to try ... Server is not good or bad in the configuration, but in the stability of the operation, large memory, high-performance CPU, high-performance motherboard, power, plus a UPS, and an uninterruptible energy supply, the basic composition of a practical server.

Any computer can be a server, as if anyone can sing the same, but amateur no professional singing well, at the same time, there is no singer famous, to put your computer into a network of servers, need to have enough bandwidth, memory, bandwidth is not enough, a lot of people drop line; One or more machines are paralyzed. Personal computers and servers are computers, but there are obvious differences between the two, so the former is called Personal pc, the latter with the server claiming to be!


The difference between the server and the PC should be from the hardware and software two aspects, according to the different application of the difference is very big, for example, the PC is that all the outpatient doctor, but the medical skill is not so exquisite, and the server should be an expert in some aspects, the processing capacity of the more
, it is the more "special" the more powerful. I start with the hardware, according to the various components of their differences:
The instructions for the 1.CPU server CPU are typically RISC (reduced instruction sets). According to the study, in most applications, the CPU uses only a few commands, so the researchers designed the instruction set according to this situation, using a combination of various commands in the centralized to achieve a variety of requirements. The benefits of this design are more targeted, can be tailored to different needs of the optimization, processing efficiency is higher. The corresponding is CISC (complex instruction set), his feature is to try to integrate a variety of common functions into a piece, for example, we often hear the mmx,sse,sse+,3d! now! And so on are all of this type. In addition, the CPU design of the server generally should consider its multi-channel function, White is several even thousands of CPU work together problem, and the PC is much simpler, this kind of multi-channel function is wasted, and its price is indeed the above brother said, not who can be affected by. (add: The server's ability to address is 64-bit earlier; the instruction set used by Appel is also RISC, he is an alternative, but has now turned to Intel) 2. Memory. The principle of memory on the server is as fast as possible, but it has higher requirements for error correction and stability, such as ECC ("Error checking and correcting" as if no one called it). We now use a few people on the PC can use 1G of memory (playing games do not count), and on the server, this G-level of memory is sometimes significantly stretched, remember last year when the country released the latest Galaxy supercomputer, his memory is reached 1 t; compared to the speed of memory, People in the application of the high priority in memory stability and error correction ability, only to ensure that the two, to consider other things.
3. Hard drive. HDD performance whether on the PC or the server, the performance of the promotion has been very slow, personally, relying on the development of machinery, the development of hard disk is unlikely to appear qualitative leap. Because the use of the server is generally enterprise units, which are stored in a large number of precious data, which on the hard disk put forward a security and stability requirements, hard disk on the emergence of related technologies are basically around these two requirements. For example: Data redundancy backup, hot Plug and so on. In addition, the server hard disk must be able to do 24*7 uninterrupted work requirements.
4. Motherboard. This I know less, rarely see the server has a motherboard, but I think should mention the server bus design-multi-channel, is how multiple CPUs can coordinate work. Interested in suggesting you look at the operating system of the book, read the foreigner wrote, very good!
5. Graphics card. In addition to graphics and 3D design (that people like to call a workstation, who knows please tell me right), the server is basically the video card you can only connect to the display can be displayed on the line!
Next I say software, software mainly refers to the operating system, such as our familiar nt,2000 server,2003 Server,linux,solrais and UNIX, etc., are specifically designed for the server, such as: Load balancing, multi-CPU support.

The first server stability is very high, parked in the telecommunications air-conditioned room, the whole year can not be shut down, do not restart. The general CPU is used to the strong processor, the same frequency, than the average CPU higher than the price of n times, fast. Hard drives generally use 10000 rpm, and basically have disk array, read and write speed is much higher. HeyComments | 0 2

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2013-09-09 20:45 enthusiastic netizensthe server in the stability and grams of scalability, in fact, CPU and other parameters and PC almost, but its production process, stability, reliability, scalability, and so much higher.

What is the difference between a server and a normal computer?