Page 15 - CA 165 ver 1.0 Class 10
P. 15

Web Server
                                                     Request &
                                                    respond by
                                                    Web Browser





                                                   Client



                                                                          Web Pages &
                                                                          Graphic Files




                 In other words, it can be said that it is a computer that stores data and runs software that is designed to
                 send web pages in file format when requested by web browsers.
                 The server is usually a computer of high configuration i.e., with large storage capacity and high speed
                 processor that stores data and executes the instructions very fast.

                 Web server is responsible for accepting requests from the client i.e., web browser and responding in
                 the form of web pages. It accepts connections from web browsers and whenever an HTML document is
                 requested, it is sent using HTTP protocol. The server computer should have a high-speed connection to
                 the Internet and should be powerful enough to handle multiple simultaneous connections at the same
                 time.

                 Some popular web servers are Apache, IBM Lotus, ‘Internet Information Server (IIS)’ of Microsoft, etc.
                 Apache is an open source web server.
                 A web client is the host computer that requests different types of services from the web server. The clients
                 may be PCs, Software or workstations.

                 Web Clients

                 ‘Client’ and ‘Server’ are two parts of an online connection. A client is any computer that requests information
                 from the server and a web server is a computer that stores the data and the source application.
                 A web client is actually the browser on client’s computer that makes the requests to the remote server. A
                 computer that uses a web (client) browser is referred to as a web client.

                 Website

                 A location on the web server where an individual or a company or any organization uploads its information
                 is known as a website. It is a collection of one or more web pages that display information with the help
                 of a web browser. A website can be compared to a book that contains different chapters in the form of
                 web pages.

                 The first page of a website is called ‘Home Page’. The pages on a website are linked to one another and a
                 person can navigate to any page by clicking on the links called ‘Hyperlinks’.
                 Websites are hosted on the web server on a rental basis by the ‘Internet Service Providers’. In order to
                 access them, every website is provided with a unique name. The websites may be owned by individuals,
                 agencies, companies, colleges, universities, government bodies, etc.





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