Server: Explained with its types

Definition:

A server is a computer that provides data to other computers. It may serve data to systems on a local area network (LAN) or a wide area network (WAN) over the Internet.

Types of server:

There are four types of server:

1.     Mail server

2.     File server

3.     Print server

4.     Application server

File server: 

A file server is a server that store files on the network for user. A user at a client machine can save a file to a hard disk located on a file server.

If the user wants to access files later, it can access the file from the client machine to a network connection to the file server.

Maintaining a central location for file storage on the server makes it easier to provide a back up copy of important files and implement of a fault tolerance system such as “RAIT” (Redundant array in expensive disk).

Print Server:

A print server manages access to network printing resources, thus enabling several client machine to use the same printer.

Because file and printers are so basic and so important to most network file and print services are very basic components of most network operating system.

Application Server:

Application  server is the server that actually run in application for the client.

 An application server is typically used for complex transaction-based applications. To support high-end needs, an application server has to have built-in redundancy, monitor for high-availability, high-performance distributed application services and support for complex database access.

Mail server:

A mail server is a server that is responsible for sending and receiving Text, E-mail and E-mail with attachments towards other users.

It keeps the record of all the mail which has to sent and received by different users, member of that specific users.

It accept all mail request from the client user and forward them using some port such as (8080, 81,83,86) which is defined during installation of main server.