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Introduction to the Internet

Why are you here?

Because the Internet is:

Revolutionizing education

Enhancing the way we do business

Turning people into life-long learners

Providing information for all facets of life

Giving access to vast opportunities

The Internet is being used to...

Post information for the world to see

Take virtual tours of museums, cities, foreign countries

Give access to the latest information available

Allow participation in global projects

Bring experts to the classroom

Interact with people from all over the world

The Basics

What is it?

How does it work?

How do I connect?

How to I acquire an E-mail account?

What is the Internet?

A means of exchanging information


Computer Networks


A telephone network connecting computers together

An Enabler--access to everything

Links more than 60 million people in 160 countries

Internet growth

Amazing 10% growth per month

50% of traffic is educational

WWW is key to expansion (GUI--Graphical User Interface) pictures

Web doubles every three months

E-mail represents 40% of web use

Why the Internet?

Born November 21, 1969

Advanced Research Projects Agency (ARPA)

  • Department of Defense
  • UCLA
  • Stanford
  • USC at Santa Barbara
  • U of Utah

Internet Design

Two major concerns

that the net be non-platform specific

that the net be totally redundant and fault tolerant

Fiber optic cable

1980--National Science Foundation


What You Can Do on the Internet

  • E-mail
  • Online conversation
  • Information retrieval
  • Promote business
  • Distribute information
  • Participate in public forums


Uniform Resource Locator, the address for a Web resource

The protocol specifies the type of web resource

The Host name specifies the server where the resource is located

The Directory name specifies a particular part of the server

The File name identifies the actual document to be retrieved. Web pages are all .htm or .html, signifying that they are created in the Web language HTML (Hyper Text Markup Language)


A tool to send and receive text messages over the Internet

Time zone independent

Fast--near instant delivery

Cheap--no long distance costs

Convenient--can attach pictures, sounds, video clips, and even software

Much like letter but in a brief, informal, conversational style

Send/receive through E-mail software (Eudora)

Usually can send to web sites

Can get complicated through different services but becoming more accessible

E-Mail Attachments

Create files in a word processing program

Write E-mail message and use program to make attachments

Windows 95 had plug-ins for various programs


Can literally be any type of text, graphic, audio, video, or executable file

Often compressed (zipped) in order to transfer more quickly

Must be converted into a special format in order to be properly received.

What can you do with E-mail?

Interpersonal exchanges

Information collection

Collaborative problem solving

Gather information quickly and conveniently

E-Mail Address

Username (only thing that you control)

@ at symbol 

host your Internet provider

sub domain


Read right to left--goes from least specific to most specific

Common Organizational Domains

Mail Servers in US

  • com--Commercial
  • edu--Educational
  • gov--Government
  • mil--Military
  • org--Organization
  • net--Network
  • int--International

Free E-Mail Accounts

Free e-mail and software

Need computer and modem

Free e-mail from Microsoft

This page was updated on:  04/10/02