what is server?

server

server is a program which serves the service to other programs (and its user). we can run server any where like in our mobile and laptops and dedicated server.

the dedicated server have high capability hardware. so it runs fast. 

 to maintain a dedicated server:

          to maintain dedicated server we need:

• we need high hardware
• we need high performance processor
• we need high specs computer
• we need high storage
• etc
  

how server works:

the server are many types and they works on the type of the use;

the server basically works on  client-server which means many computer and mobiles are connected to a single computer which is server.

the server serves it service to the clients means from a single server many computer can get any data from any where easily .

types of servers:

there are many types of server they are:

Server type	Purpose	Clients
Application server	Hosts webapps (computer programs that run inside a web browser) allowing users in the network to run and use them, without having to install a copy on their own computers. Unlike what the name might imply, these servers need not be part of the world wide web; any local network would do.	Computers with a web browser
Catalog server	Maintains an index or table of contents of information that can be found across a large distributed network, such as computers, users, files shared on file servers, and web apps. Directory serversand name servers are examples of catalog servers.	Any computer program that needs to find something on the network, such a Domain member attempting to log in, an email client looking for an email address, or a user looking for a file
Communications server	Maintains an environment needed for one communication endpoint (user or devices) to find other endpoints and communicate with them. It may or may not include a directory of communication endpoints and a presence detection service, depending on the openness and security parameters of the network	Communication endpoints (users or devices)
Computing server	Shares vast amounts of computing resources, especially CPU and random-access memory, over a network.	Any computer program that needs more CPU power and RAM than a personal computer can probably afford. The client must be a networked computer; otherwise, there would be no client–server model.
Database server	Maintains and shares any form of database (organized collections of data with predefined properties that may be displayed in a table) over a network.	Spreadsheets, accounting software, asset management software or virtually any computer program that consumes well-organized data, especially in large volumes
Fax server	Shares one or more fax machines over a network, thus eliminating the hassle of physical access	Any fax sender or recipient
File server	Shares files and folders, storage space to hold files and folders, or both, over a network	Networked computers are the intended clients, even though local programs can be clients
Game server	Enables several computers or gaming devices to play multiplayer games	Personal computers or gaming consoles
Mail server	Makes email communication possible in the same way that a post office makes snail mailcommunication possible	Senders and recipients of email
Media server	Shares digital video or digital audio over a network through media streaming (transmitting content in a way that portions received can be watched or listened to as they arrive, as opposed to downloading an entire file and then using it)	User-attended personal computers equipped with a monitor and a speaker
Print server	Shares one or more printers over a network, thus eliminating the hassle of physical access	Computers in need of printing something
Sound server	Enables computer programs to play and record sound, individually or cooperatively	Computer programs of the same computer and network clients.
Proxy server	Acts as an intermediary between a client and a server, accepting incoming traffic from the client and sending it to the server. Reasons for doing so includes content control and filtering, improving traffic performance, preventing unauthorized network access or simply routing the traffic over a large and complex network.	Any networked computer
Virtual server	Shares hardware and software resources with other virtual servers. It exists only as defined within specialized software called hypervisor. The hypervisor presents virtual hardware to the server as if it were real physical hardware[7]. Server virtualization allows for a more efficient infrastructure.	Any networked computer
Web server	Hosts web pages. A web server is what makes the World Wide Web possible. Each website has one or more web servers.	Computers with a web browser