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Internet Basics for Lilburn Elementary

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Internet Basics for Lilburn Elementary Lisa Campbell, Media Specialist What is the Internet ? The Internet is a worldwide collection of computer networks The ... – PowerPoint PPT presentation

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Title: Internet Basics for Lilburn Elementary


1
Internet Basics for Lilburn Elementary
  • Lisa Campbell,
  • Media Specialist

2
What is the Internet?
  • The Internet is a worldwide collection of
    computer networks

3
The Internet is the .
  • Plumbing that connects all the computers so they
    can talk!

4
This talk can take several forms
  • Email
  • Wikis -- Discussion groups like Facebook

5
What is the World Wide Web?
  • This is the information on those computers.

6
  • When you search for information, you are really
    searching other computers.
  • All the information on all the computers all over
    the world is the World Wide Web!
  • (All connected by the plumbing, or the
    internet.)

7
How to search for facts
  • We have a choice of two tools
  • Search Engine
  • Database

8
Whats the Difference?
9
Search Engine
  • A search engine, like Google, is a robot that
    finds web sites containing the exact words you
    were looking for.
  • No humans are involved.

10
The bad news about Search Engines
  • Search penguins
  • What you might get
  • Penguin Tires, Inc.
  • Penguin Skateboards

11
Keywords!
  • Google remembers 10 words. Be specific!

12
Making a cake?
  • Google cake recipe
  • 29,200,000 results thats 29 MILLION!!

13
Keep adding words
  • Add chocolate cake recipe
  • 18,000,000 results - 18 MILLION

14
Keep adding words
  • Add sour cream banana chocolate cake recipe
  • 3,770,000 results 3 MILLION

15
Keep adding words
  • Add coconut sprinkles sour cream banana
    chocolate cake recipe
  • 214,000 results WHEW!!

16
Coconut Sprinkles Sour Cream Banana Cake Recipe
200,000
17
The more keywords you add, the smaller your
results!
18
Red Toyota Camry in Lilburn, GA 63 Thousand
19
Database
  • Look at the word
  • Data facts
  • Base place
  • A human takes facts from the internet, reads it
    and makes sure it is correct, then keeps it in
    one place.

20
Database
  • You can usually trust what you read in a
    database, like Britannica or Worldbook online.

21
What is a URL?
  • A URL is the site address on the world wide web.
    It stands for Uniform Resource Locator (geeky
    computer talk)

22
What is in a URL?
  • http - HyperText Transfer Protocol
  • More geeky computer talk!
  • indicates a Web document or directory. Most of
    the URLs you will use start with http, which is
    the method by which data is transferred over the
    Web.
  • www world wide web
  • Example Gwinnett County Public Library
  • http//www.gwinnettpl.org/

23
Whats that at the end?
  • http//www.gwinnettpl.org

24
Domain names
  • .com commercial
  • .net network
  • .org non profit
  • .edu educational institution
  • .mil military
  • .gov government

25
New Domain Names
  • .aero air transport industry 
  • .biz businesses
  • .coop cooperatives
  • .info unrestricted use
  • .name individuals
  • .museum museums
  • .pro professionals
  • There are lots of them!

26
Country Codes
  • .au - Australia.br - Brazil.ca - Canada.fr -
    France .hk - Hong Kong .il - Israel .in -
    India .it - Italy .mx - Mexico .tw - Taiwan
    .uk - United Kingdom

27
Get used to glancing at the URL
  • A crook pretending to be Ebay!
  • URL from Romania! It was right in the URL.
  • cgi.ebay.in/romania_WQ44vmds8767204
  • Many fell for it and lost their money!
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