A server such as an email server is a computer or device on a network that manages network resources, such as printers, database, files, web site, application, and many other resources that users need to access in a common way.
Servers are minicomputers that offer better performance, and larger in size than workstation. However the cost of a server is more than a workstation. Normally servers are designed to support multiple users at a time.
Servers possess larger storage capacities and have a higher processing power than workstation. They support faster peripheral devices, such as high speed printers that can print hundreds of lines per minute.
Server types most organization use.
Servers are categorized by the type of function they play in a network. For example:
A file server is a computer and storage device dedicated to storing files. Any user on the network can store files on the server.
A print server is a computer that manages one or more printers.
A network server is a computer that manages network traffic.
A database server is a computer system that processes database queries for the users.
An Email server is a computer that manage the email accounts inside an organization.
Although there are different types of servers, those are the current servers most organization usually uses.
The need depends on the number of resources the organization has to share among the users.
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