Server - The important piece of computers

Data Center Interior

In todays life, computers are becoming so basic needs for human. Even every house has a computer actually not house only every person has PC or laptop of their own. So it is necessary to know about computers and network. As we all use internet which use network to work. Servers is also a part of it, a very important part. A basically a server is a piece of computer which provides data to other computers. There is many types of server like web servers, mail servers, etc. Basically the user of the server are known as client. The role of server is to share data as well as resources and distribute work. Hardware requirements for servers depends on the it's purpose and software.

Rack-Mountable Server
Img by-Wikipedia

Server Clusters

The server clusters is also known as server farm. It is a collection of computer server. Server farm consist of lots of computers which requires lots of energy and cooling system. It also has backup server for the case of primary servers failure. It uses high speed processors connected by either Gigabit Ethernet or by  Infiniband or Myrinet. 

Operating System

The common and most use operating system for server are Unix like. It has GUI available or optional. Reconfiguration and update of hardware or software can be done by it without restarting. It has flexible and advanced network capabilities. Automation capabilities such as daemon in Unix and services in windows. It has tight system security. Advanced detection ability.