The The InternetInternet

The internet is a worldwide system for The internet is a worldwide system for linking smaller computer network linking smaller computer network together.together.

Users can access any information, Users can access any information, regardless of the type of computers regardless of the type of computers they have, because of standard they have, because of standard protocols that allow computers to protocols that allow computers to communicate with each other .communicate with each other .

When you make a connection to the When you make a connection to the internet you enlist the help of four internet you enlist the help of four communication services: your communication services: your computer, the ISP, the server (host computer, the ISP, the server (host computer), and the computer), and the telecommunications network telecommunications network (communication software and a (communication software and a modem and phone or cable modem).modem and phone or cable modem).

Your computer the client) runs Your computer the client) runs communications software. your communications software. your modem and communications modem and communications software provide an open path software provide an open path between your computer and your between your computer and your ISP. the ISP provides you a link to the ISP. the ISP provides you a link to the internet.internet.

Most information is shared without Most information is shared without charge except for whatever access charge except for whatever access fee is required to maintain an fee is required to maintain an account with an internet service account with an internet service provider (ISP). such as America provider (ISP). such as America Online and the local and community Online and the local and community ISPs.ISPs.

Both telephone companies and Both telephone companies and television cable companies provide television cable companies provide high speed access to the internet. high speed access to the internet. Integrated services digital network Integrated services digital network lines provide speed up to 5 times lines provide speed up to 5 times that of a regular analog phone lines.that of a regular analog phone lines.

digital subscriber line (DSL) provide digital subscriber line (DSL) provide even faster access.even faster access.

The internet connects thousand of The internet connects thousand of computers networks worldwide. it computers networks worldwide. it provides users with several basic provides users with several basic types of connections services:types of connections services:

Electronic mail (e-mail) for person to Electronic mail (e-mail) for person to person communication.person communication.

A type of electronic, public bulletin A type of electronic, public bulletin board enabling a person to connect board enabling a person to connect with a group interested in the same with a group interested in the same topic.topic.

Information search capabilities for Information search capabilities for accessing libraries and data bases of accessing libraries and data bases of information throughout the world.information throughout the world.

““livelive”” communication, allowing communication, allowing individuals on the internet to individuals on the internet to ““chatchat”” or or ““talktalk”” in real time, as quickly as in real time, as quickly as they can type their massages.they can type their massages.

Audio and video based Audio and video based communication through software communication through software such as iChat ,yahoo.such as iChat ,yahoo.

Each individual internet user has a Each individual internet user has a unique address. an internet address unique address. an internet address contain three parts: the persons contain three parts: the persons name and or username , the name and or username , the computer network where he or she computer network where he or she can be reached and type of can be reached and type of organization he or she is part of .organization he or she is part of .

gatep@seas.edugatep@seas.edu

Common methods of home Common methods of home access include access include dial-up, ,

landline landline broadband (over (over coaxial cable, coaxial cable, fiber optic or or

copper wires), copper wires), Wi-Fi, , satellite and and 3G technology technology

cell phones. Public places to . Public places to use the Internet include use the Internet include

libraries andlibraries and Internet cafes

High-end mobile phones such as High-end mobile phones such as smart phones generally come with smart phones generally come with Internet access through the phone Internet access through the phone network. Web browsers such as network. Web browsers such as Opera are available on these are available on these advanced handsets, which can also advanced handsets, which can also run a wide variety of other Internet run a wide variety of other Internet software software

MarketingMarketing

The Internet has also become a large The Internet has also become a large market for companies; some of the market for companies; some of the biggest companies today have grown by biggest companies today have grown by taking advantage of the efficient nature taking advantage of the efficient nature of low-cost advertising and commerce of low-cost advertising and commerce through the Internet, also known as e-through the Internet, also known as e-commerce. It is the fastest way to commerce. It is the fastest way to spread information to a vast number of spread information to a vast number of people simultaneously. The Internet has people simultaneously. The Internet has also subsequently revolutionized also subsequently revolutionized shopping shopping

Social impactSocial impact

The Internet has made possible entirely new The Internet has made possible entirely new forms of social interaction, activities and forms of social interaction, activities and organizing, thanks to its basic features such organizing, thanks to its basic features such as widespread usability and access.as widespread usability and access.

Social networking websites such as Social networking websites such as Facebook and My Space have created a new Facebook and My Space have created a new form of socialization and interaction. Users form of socialization and interaction. Users of these sites are able to add a wide variety of these sites are able to add a wide variety of items to their personal pages, to indicate of items to their personal pages, to indicate common interests, and to connect with common interests, and to connect with others.others.

WHAT IS THE INTERNET SOCIETY?WHAT IS THE INTERNET SOCIETY? The Internet Society is the international The Internet Society is the international

organization for global cooperation and organization for global cooperation and coordination for the Internet and its coordination for the Internet and its internetworking technologies and internetworking technologies and applications.applications.

WHO ARE ITS MEMBERS?WHO ARE ITS MEMBERS? Its members reflect the breadth of the Its members reflect the breadth of the

entire Internet community and consist of entire Internet community and consist of individuals, corporations, non-profit individuals, corporations, non-profit organizations, and government agencies.organizations, and government agencies.

WHAT IS ITS PURPOSEWHAT IS ITS PURPOSE??

Its principal purpose is to maintain and Its principal purpose is to maintain and extend the development and availability of extend the development and availability of the Internet and its associated the Internet and its associated technologies and applications - both as an technologies and applications - both as an end in itself, and as a means of enabling end in itself, and as a means of enabling organizations, professions, and individuals organizations, professions, and individuals worldwide to more effectively collaborate, worldwide to more effectively collaborate, cooperate, and innovate in their respective cooperate, and innovate in their respective fields and interests.fields and interests.