Understanding and Building Basic Networks

1
Understanding and Building Basic Networks

• Chapter 2
• Exploring the World Wide Web

2
In this chapter, you will answer these questions

• How do I use a web browser?
• What's in a browser?
• How are Web sites organized?
• How do I get to other sites?
• What is a search engine?
• What do I do with all the information I find and
  how did it all get on the web?
• How do I use the information?
• Can I listen to music, see videos, and play games
  in the browser?
• Can I buy things on the Web?

3
How do I use a web browser?

• The browser makes it easy for you to jump from
  page to page. This is usually called surfing the
  net. You surf the net through the browser
  window.

4
What's in a browser?

• Your home page contains links to other pages and
  you can often customize it, depending on the Web
  site you select as your home page. Every Web
  browser has similar components.

5
Internet Explorer Button Bar

• The button bar contains a variety of buttons that
  help you navigate the Web easier. Each button
  performs a specific task.

6
How are Web sites organized?

• The pages in a Web site are usually organized in
  one of three ways
• Linear
• Tree
• Random

7
Internet Basics Video

• Refer students to Internet Basics Video on
  Kidzonline site.

8
Linear Website

• A linear Web site is set up just like a novel.
  You start on page one (the home page), and
  proceed to page two, then page three, and so on.
• An example of a linear web page can be found at
  http//www.fda.gov/oc/opacom/kids/default.htm

9
Tree Website

• A tree Web site looks like your family tree. You
  start at page one, but you might choose to go to
  one of several pages.
• An online example of this type of web page can be
  found at http//pbskids.org

10
Random Website

• A random Web site doesn't appear at first glance
  to have any organization. You can go to a variety
  of pages and might not be able to trace a clear
  path back to the home page.
• An example of a random web page can be found at
  http//www.microsoft.com

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How do I get to other sites?

• The quickest way you can move to a new page, and
  the thing that makes the Web so powerful, is by
  using something called hypertext. Hypertext links
  on a Web page are often shown as underlined words
  and phrases or as graphics.
• Another way you can move to other pages and visit
  other sites on the Web is by using Web addresses.
  This address is known as the Uniform Resource
  Locator, or URL

12
What is a search engine?

• Search engines are Web sites on the Web where you
  can go to find specific information. There are
  many different types of search engines, but most
  have four components that help them find,
  organize, and make information accessible to
  users.
• MSN Search http//search.msn.com
• Google http//www.google.com

13
What do I do with all the information I find and
how did it all get on the web?

• One of the best ways to evaluate information you
  find on the Web is to look at where you found the
  information.
• There are five key components used to help
  determine if information is reliable.
• authority
• accuracy
• objectivity
• timeliness
• coverage

14
How do I use the information?

• You can use something if you have permission from
  the author or if you created it yourself, and you
  can use a short excerpt if you give proper credit.

15
Can I listen to music, see videos, and play games
in the browser?

• Over the Internet, you can listen to voices,
  music, interviews, sound clips, even radio
  stations.
• There are different types of videos you can view
  through your browser. Some require that you have
  special software installed, which may or may not
  come with your browser.
• You can play games using your browser or through
  a variety of software applications.
• When playing games in your browser, you many need
  to run other software such as Java, Shockwave,
  and Flash.

16
Can I buy things on the Web?

• Shopping is becoming more popular over the Web
  every day.
• Online shopping is possible and safe because of
  programs that hide your important information and
  the information is only visible to the store from
  which you are purchasing.

17
What You've Learned About the World Wide Web

• In this lesson, you have examined the most
  popular part of the Internet the World Wide Web.
  
• The Web contains music, video, sound, graphics,
  and other multimedia options that make this an
  enormous collection of information for business,
  education, and pleasure.