Thursday, April 9, 2020

Chapter - 2 Internet


The Internet is the interconnection of millions of computers across word wide in order to share data and information. It is the largest network formed by connecting computers on LANs, MANs and WANs of the whole world through the TCP/IP protocol to share data and information.
The services provided by the Internet  to the client computers are  WWW, E-mail, Chat , E-Fax,  Video Conference,  E-commerce , File transferring , Telnet, Newsgroup, tele-medicine, social network service, e-learning and so on.
The components required to use internet in a computer are Web Browser , Internet Account (ISP), Router, telephone line, cable internet line, optical fiber etc.  A web browser is the essential software required for browsing or surfing web sites on the internet.Google Chrome, Netscape Navigator, Microsoft Internet Explorer and Mozilla FireFox are the popular web browsers. An ISP (Internet Service Provider) provides facility of the internet to the users. The local ISP connects a computer to the internet. World Link, ADSL, Vianet, Web Surfer, Otel, Subisu are the popular local ISPs of Nepal.
Intranet : It is a private network owned by a company or an organization with limited users, limited services and limited area to share  data and information.

Theres a lot of impact of internet. 

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