INTERNET BASICS

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INTERNET BASICS
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What IS the Internet?

• A network of networks based on the TCP/IP
  protocols, a community of people who use and
  develop these protocols, and a collection of
  resources that can be reached from those
  networks.
• -- Krol Hoffman

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So What is the Internet?

• Its the connections of all of the computers in
  the world whove chosen to be connected.

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Birth of the Net
60s ARAPNET (DoD)
80S NSF (education research)
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The Internet v. The Web

• What is the difference between the Internet and
  the World Wide Web?
• The Internet is ALL of the computers and ALL of
  the information available
• The World Wide Web is a subset of the Internet
  which contains hypermedia and is accessible
  through a Web browser.

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What are the parts of the Internet?
World Wide Web
Email
Gopher, WAIS
WWW II
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The Browser
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The Browser
Microsoft Internet Explorer
Netscape Navigator
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The Web Page
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Data in HyperText Markup Language
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Addresses (URLs)
http//home.att.net/faehnle/index.html

• hyper text transfer protocol

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• ISP
• Internet Service Provider

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• World Wide Web
• NOT A REQUIREMENT!
• www2.

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• .net
• .com
• .edu
• .org
• .mil

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• page owner
• tilde _at_ at / foreslash

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• Actual web page youre visiting

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Addresses (URLs)
http//www.home.att.net/faehnle/index.html

• hypertext markup language
• also, htm

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Addresses (URLs)
http//Www.Home.Att.Net/Faehnle/Index.Html

• UPPER CASE?
• Lower case?
• Mixed Case?
• Yes, but well, no, maybe . . .
• hyper text transfer protocol

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Bookmarks or Favorites
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Searching the Web
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Re-Search

• Search Engines

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Take Note . . .

• LinkStar, Lycos, WebCrawler, Alta Vista,
  LinkMaster, Infoseek, Nerd World, Yahoo,
  Magellan, Aliweb, Linkcentre, Northern Light,
  AT1, Excite, World Announce, Archive, Go2.com,
  web//411, Pathfinder, REX, LEO, Open Text,
  Infohiway, HotBot, Tradewave Galaxy, Galaxy,
  i-Explorer, Identify, Intuitive Web Index, Jayde,
  LinkMonster, Internic Directory of Directories,
  Websitez, Internet Explorer, Aliweb, What-u-seek,
  NetFind, MetaSearch, Savvy Search, Internet
  Sleuth, Prime Search, Use It!, Pro-Fusion, Mother
  Load Insane Search, FrameSearch, Highway 61,
  Dogpile, All4One, Onramp.net, Cyber411, i-Find,
  MetaCrawler, Mamma

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George Boole
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So, who was George Boole and why is he famous?
According to historians, George Boole

• (1930-1994) was a linebacker for the Green Bay
  Packers, known for perfecting the play called
  the Boolean Blitz.
• (1740-1798) was an American revolutionary, signer
  of the Declaration of Independence and the
  Constitution, and known for the Boolean
  Compromise of 1783.
• (1815-1864) was an English mathematician known
  for his work with symbolic logic, now called
  Boolean Logic.
• ( 1624-1691) was an Anglo-Irish chemist known for
  experiments on the properties of gases, leading
  to the development of Booles Law of Gas
  Exchange.
• (1738-1790) was an English explorer, known for
  the discovery of Boolean Bay, on the southeastern
  coast of Australia.
• (1868-1935) was an American businessman, best
  known as the developer of the first canned
  condensed soup, Chicken Boolean.

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Yes, George Boole (1815-1864) was an English
mathematician who helped establish a field of
mathematical study called symbolic logic. This
system, known as Boolean logic, is basic to the
design of digital computer circuits.  It also is
the basis for computer database searches. Because
many Internet search engines are based on Boolean
logic, so it is important to understand how this
system works. Boolean logic uses words called
operators. There are three main operators 
the words AND, OR, and NOT.  If you are using an
Internet search engine that allows the use of
these words, you will be able to make your search
for information more specific to what you need.
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 Lets see how the use of these words can help
you get the specific information you want. 
Perhaps you are interested in finding some
information on country western music. Using the
word OR makes your search results very broad
OR
OR
western movies  western dude ranches  country
cooking  country theme decorating  rock  roll
music 
OR
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Using the word AND actually narrows the search
results
AND
AND
the sound you are looking for!
AND
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Using the word NOT also limits the amount of
information you will get in your search
AND
AND
Patsy Cline  Hank Williams  Tammy Wynette and
so forth 
NOT
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Custom Searches

• Boolean
• and
• not
• OR

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Who is the Author?
Who is the publisher?
What is the point of view?
Are there references to other sources?
How current is the information?
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Evaluating Web Resources
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You need to confirm that the following
information is provided on the Website
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For Reliability and Credibility
Who is the author or creator? Is he/she the
original author/creator? Is this person
qualified to write this article/web page? What
are his/her credentials?
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What is the authors occupation, position,
education, and experience? Is the author
affiliated with a larger institution? Does an
institution (company, government, university,
etc.) or Internet provider support or endorse
this information? What is the mission of the
organization?
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Is it a national institution? What is the
membership? When was the source created,
published, or last updated? Are the facts
accurate? How does this information compare with
other sources in the field?
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Questions about the Websites Perspective
Does the author/creator express a particular
point of view? Does the author/creator have a
bias? Are the author/creator's affiliations with
particular organizations, institutions,
associations, etc. reflected in the message or
content?
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Does the publication/web page in which the
article appears or the associated web sites have
a bias? Ideological subject discipline
etc. Is the publication/web page, or its parent
site, directed toward a particular audience?
General public scholars in a given field,
etc. Where is the publication/web page
published? When was the article/site written or
created?
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What about the purpose of the Website?
To what audience is the author writing? Is this
reflected in writing style, vocabulary, or
tone? Does the material inform? Explain?
Persuade?
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Is there sufficient evidence? What conclusions
are drawn?
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Questions?
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Assignment
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Interesting sites For educators
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www.mapquest.com
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www.google.com
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www.bartleby.com
www.libraryspot.com/
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http//www.ode.state.oh.us/
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www.teachers.net/
www.teach-nology.com
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www.findarticles.com/PI/index.jhtml