Introduction to the Internet and The World Wide Web

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Introduction to the Internet and The World Wide
Web
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What on Earth is the Internet?
The Internet is the largest network of computers
in the world using the TCP/IP protocols.
(Network of Networks)
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Internet Ownership

• Who owns the Internet?
• No one, everyone
• Predominated by government, the academic
  community and industry
• Strong U.S. presence - Trail blazers
• The New Frontier/The Wild West

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Source Network Wizards, Internet Domain Survey,
July 1996 http//www.nw.com
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Source Network Wizards, Internet Domain Survey,
July 1996 http//www.nw.com
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Source Matthew Gray, Growth and Usage of the Web
and the Internet, 1996 http//www.mit.edu8001/peo
ple/mkgray/net/web-growth/summary.html
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Client /Server Model of The Internet
Finance
Media
Computers
Education
Real Estate
Internet
Government
Health
Universities
Business
Service Provider Software Trumpet Winsock MacTCP
/ Mac PPP Eudora - E-Mail Netscape - WWW
Browser FTP Telnet
John Q. User
Server
Client
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Role of the Internet Service Provider

• Finding an Internet Service Provider is critical
  to your successful use of the Internet and the
  World Wide Web.
• An Internet Service Provider will ensure that all
  your personal and business needs are met through
  the provision of four basic elements
• ACCESS
• TOOLS
• TRAINING
• TECHNICAL SUPPORT

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E-Mail (Electronic Mail)

• most popular Internet application
• easy way to send /receive messages and files,
  save paper
• cheaper than commercial services
• no long distance charges, fast, cost-effective
• global communication and data exchange
• ability to send mail to a group
• permanent log of correspondence

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USENET

• global network of Newsgroups
• forums on specific subjects
• used to discuss and exchange information
• content rich and topics which are varied
• estimate 10 million participants
• exhaustive supply of information
• dynamic and ever changing like the web

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What is the World Wide Web?

• The World Wide Web (WWW) is a global interactive,
  dynamic, cross platform, graphical hypertext
  information system that runs on the Internet.

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What is a Web Browser?

• A Web Browser is special software such as
  Netscape, Mosaic or Internet Explorer. These
  browsers allow a user to view Web pages delivered
  from a client server (Web Site) situated at a
  particular URL on the World Wide Web.

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Netscape
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Mosaic
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Internet Explorer
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What is a Web Page?

• A Web Page is a single document written in HTML
  (Hyper Text Mark-up Language) that includes the
  text of the document, its structure, any links to
  other documents and graphic images and other
  media.

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What is a URL?

• A URL or Uniform Resource Locator is a unique
  address for the location of any type of Internet
  resource, whether it is a single file on an FTP
  site, an entire Gopher server, or a page on the
  Web.
• Sample URL Address
• http//www.inasec.ca/com/btudin/tudmain.htm

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Search Engines on the WWW

• Tools on the WWW used to search and find web
  sites related to a particular topic
• provide for searching using keywords and boolean
  operators
• Popular ones are Alta Vista, Infoseek, HotBot,Web
  Crawler, Lycos and Yahoo
• Over 300 at present

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InfoSeek
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Lets now surf the World Wide Web and check out
some new and interesting Web Sites.

• WWW

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Academic Institutions
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Environmental Protection
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Magazines
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News
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Market your Business on the Web with Java
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Clip Art
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Internet Banking
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Politics
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Employment Opportunities
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Entertainment
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Tourism
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Sports
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Visit the World Wide Web viathe Internet

• Come and take your first trip into Cyber Space...
  
• It wont be your last !

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• This slide presentation was designed by
• B. Tudin Information Technologies
• For additional information contact
• B. Tudin Information Technologies
• 6130 Heritage Park
• Gloucester, Ontario, CANADA K1C 7G6
• Telephone [phone]
• E-Mail btudin_at_inasec.ca
• Visit our site on the World Wide Web at
• http//www.inasec.ca/com/btudin/tudmain.htm

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