A server is a device or machine that over a network distributes resources, data, facilities, or programs to other computers known as clients. In theory, computers are called servers as they share resources with client machines. Web servers, mail servers, and virtual servers are among the various types of servers. At the same time, an individual system will provide resources and use resources from another system. This means that a computer will act as both a server and a client.
Mainframe computers and minicomputers were among the first server. The name comes from the fact that minicomputers were much smaller than mainframe computers. However, as technology advanced, they grew to be far larger than desktop computers, making the word "microcomputer" a bit of a misnomer.
Initially, such servers were linked to terminals, which did not do any actual computation. Dumb terminals accepted input through a keyboard or card reader and output the results of any computations to a display screen or printer. The server was used to perform the calculations.
Working Of A Server
A system must be configured to listen to requests from clients over a network connection in order to act as a server. This functionality can be found as an installed feature, a position, or a combination of the two in the operating system. Microsoft's Windows Server operating system, for example, includes the ability to listen for and respond to client requests. In addition, installed roles or services expand the types of client requests that the server can handle. Another example is an Apache web server, which is an external program built on top of an operating system that responds to Internet browser requests.
A client sends a request over the network when it requires data or features from a server. This request is received by the server, which responded with the necessary details. This is the client-server networking request and response model, also known as the call and response model.
As part of a single request and response, a server will often perform a variety of additional tasks, such as verifying the requestor's identity, ensuring that the client has permission to access the data or services requested, and properly formatting or returning the appropriate response in an expected manner.
Types of servers
Data servers are computers that store and distribute data. Files stored on a server may be shared by several clients or users. Furthermore, instead of having to provide protection and integrity for data on any computer in an enterprise, centrally storing files allows for faster backup and fault tolerance solutions. To boost performance, file server hardware can be built to optimize read and write speeds.
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