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The word “browser” originated prior to the Web as a generic term for user interface that enables to browse
             navigate through and read  text files online. Many people use web browsers to access to the Internet and it
            is being seen almost as a necessity.

             s a client  it uses        ypertext  ransfer  rotocol  to make re uests to the  eb Server throughout the
            Internet on behalf of the browser user. Most browsers support e-mail and the File  ransfer  rotocol  F     but
            a Web browser is not required for those Internet protocols and more specialised client programs are more
            popular.
















            Popular Web Browsers
              Firefox: developed by Mozilla.

              Google Chrome: currently one of the most commonly used browsers developed by Google.
              Opera: a fast and stable browser that’s compatible with most relatively operating systems.
              Safari: a browser for Apple computers and mobile devices.

              Microsoft Edge: used as a replacement for Internet Explorer in Windows 10.

              Internet Explorer: relegated to the past, Microsoft has mostly replaced Internet Explorer with Edge.

                   Do you know?


                    he first browser  called N S  Mosaic  was developed at the National  enter for Supercomputing
                   Applications in the early ‘90s.



            Web Address
            On the Internet  there are numerous web sites  it is only with the help of web address that we can find a
            particular website. Web address is the name for identifying a website on the Internet.


            Domain Name System (DNS)
             he  omain Name System   NS  is the Internet s system for mapping alphabetic names to Internet  rotocol
             I   addresses.  For example  when a  eb address       is typed into a browser  a  NS  uery is made to find
            an IP address of a Web server associated with that name. Text-based addressing system on the Internet is
            called  omain Name System   NS . In this system  each website has a uni ue name such as oracle.com  cbse.
            nic.in, etc.
             he last three letters of the web address is said as  op  evel  omain       that provides information about
            the root of the domain for the type of organisation to which the address belongs to. It is alphabetical and
            helps to identify an address in Domain Name System.





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