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5 Internet and E-mail
Your Aim
to learn about:
The Internet World Wide Web
How the Web Works? Using Web Browser
Using URLs E-mail
What is Spam? Emoticons and Acronyms
Netiquettes
The Internet is a computer network that connects hosts and end systems throughout the world.
It is different from the traditional telephony network and bears some remarkable resemblance
to the postal system.
Today, the Internet connects thousands of networks and millions of users around the world. It is
a huge, cooperative community with no central ownership.
THE INTERNET
The seed of the Internet was planted in 1969, Clickipedia
when the Advanced Research Projects Agency
The World Wide Web (www) or Web was
(ARPA) of the United States Department of
created in 1989 at the European Particle
Defense began connecting computers at
Physics Laboratory in Geneva, Switzerland,
different universities and defense contractors.
as a method for incorporating footnotes,
The resulting network was called ARPANET.
figures, and cross-references into online
At first, ARPANET was basically a large network
documents.
serving only a handful of users, but it expanded
rapidly. Initially, the network included four primary host computers.
The Internet acts as a carrier for several different services, each with its own distinct features
and purposes. The most commonly used Internet services are: World Wide Web, electronic mail,
news, file transfer protocol, chat, instant messaging, online services and peer-to-peer services.
WORLD WIDE WEB
The World Wide Web (www) is a large information system where you can surf and get information.
It consists of several public and private websites which may be interlinked and accessible over
the Internet worldwide. WWW is also known as Web.
Internet and E-mail 49

