Client Server Model of Distributed Computing Tutorial

Client/Server Model of Computing

In the client/server computing, all clients communicate with a server in the computer network. Both the clients and server are the nodes (communication points) on the network. The arrangement of the nodes in a network is called the network topology. In client/server computing model, there are two computer which play an important role

(1) Client                                  (2) Server

Client/Server Definition

Clients are personal computers or workstations on which users run applications. A network architecture is that in which each computer or process on the network is either a client or a server. Servers are powerful computers or processes dedicated to disk drives (file servers), printers.

Client/server model is a form of distributed computing where one

program (the client) communicates with another program  server) for the purpose of exchanging information,

Client/Server Architecture

A server is a computer system that selectively shares its resources; a client Is a computer or computer program that initiates contact with a server in order to make use of a resource.

The Client/server architectures are sometimes called 2-tier architecture.

The client’s responsibilities are usually to

• Handle the user interface.
• Translate the user’s request into the desired protocol.
• Send the request of the server.
• Wait for the server’s response.
• Translate the response into human readable format.
• Present the results to the user.

The server’s functions include

• Listen for a client’s query/request.
• Process that query/request.
• Return the results back to the client.

A typical client/server interaction goes like this

• The user runs client software to create a query.
• The client connects to the server.
• The client sends the query to the server.
• The server analyses the query.
• The server computes the results of the query.
• The server sends the results to the client.
• The client presents the results to the user.
• Repeat as necessary.

Key Points

• Specific type of clients include web browsers, e-mail clients and the online chat clients.
• Specific types of servers include web servers, FTP severs, application servers, database server, mail servers, file servers, print servers and terminal servers.
• Most web services are also types of severs.

Sorting in Design and Analysis of Algorithm Study Notes with Example

Learn Sorting in Handbook Series:  Click here 

Follow Us on Social Platforms to get Updated : twiter,  facebook, Google Plus