what is web browser ?
Web browsers are software applications that are used to access the information on the World Wide Web (WWW) that is stored on web servers. Web servers are used to store, manage and supply the information on the World Wide Web. The main web browsers in use are Microsoft Internet Explorer and Mozilla Firefox. Browsers display the text and graphics accessed from web sites and provide tools for managing information from web sites.
Web browsers communicate with web servers in the following way :
A request from a PC is executed when the user types in a web address, clicks on a hyperlink or fills in an online form such as a search. This request is then sent to the ISP and routed across the Internet to the destination server using the mechanism described in the section on protocols. The server then returns the requested web page if it is a static (fixed) page, or if it requires reference to a database, such as a request for product information, it will pass the query on to database server and will then return this to the customer as a dynamically created web page. Information on all page requests is stored in a transaction log file which records the page requested, the time it was made and the source of the enquiry.
The most popular browsers for windows are as follows:
- Internet Explorer (IE)
- Netscape Navigator (NN)
- Mozilla Firefox
- Google Chrome
- Amaya, etc.
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