Internet Fundamentals

Transcript Internet Fundamentals

Internet Fundamentals
Learning to Use the World Wide Web
The Internet Teacher
Internet Fundamentals
 Introduction
– The World Wide Web
– The Internet
 Using
a Web Browser
– Netscape Navigator
 Finding Information on the Web
(Using Effective Search Strategies)
– Directories
– Search Engines
World Wide Web (WWW)
An Introduction
– a vast collection of information
that’s connected like a web
– accessible through the Internet using
connections called hyperlinks
– view the WWW resources through a
program called a Web Browser, such as:
Netscape
Navigator
 Internet Explorer
World Wide Web
(WWW)
–Navigate through the WWW by
pointing to and clicking on
hyperlinks (underlined or boldfaced
words, phrases, icons, or images)
–Also called Cyberspace or the
Information Superhighway
Often confused…...
URL or Email Address?
 URL
- Uniform Resource Locator
Web Address
 Example:
http://www.weather.com
 Used
by Browsers to locate sites
 Often confused with Email addresses
[email protected]
or
Entering a URL
http://netscape.com
Location Box
Enter URL’s here
(or Web Address)
http://netscape.com
MDCC Faculty Training - 10/5/99
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Sample URL’s
(or Internet Addresses)
Internet Address or URL Global Domains
http://www.angelfire.com
http://www.msstate.edu
http://www.intop.net
http://www.navy.mil
http://www.____.org
http://www.____.gov
commercial site
educational inst.
network organiz.
military
not for profit org.
gov. agency,dept.
Web Pages
 Web
Pages - documents on the WWW
 Written and constructed using HTML
 HTML - Hyper Text Markup Language
– a special language
or code used to
design and publish
documents on the
Web
<html>
<head>
<title>MBJ ONLINE</title>
<base
href="http://www.msbusiness.co
m/">
</head>
The Internet
 An
information system
 Communication tool
 A large network of computer systems
world wide
 can
be explored by using a Web Browser
 Services
 Email
available through the Internet:
(Discussion groups,Chat Rooms, etc.)
 Information search (including research)
 Education (Online courses; virtual colleges)
 Entertainment, News, and more…...
Internet Fundamentals
Using a
Web Browser
Netscape Navigator
or
Internet Explorer
Web Browsers
 Software
programs used to
access the World Wide WebNetscape
Navigator
 Two most popular
web browsers:
Microsoft
Internet Explorer
Netscape Navigator
 Similar
with slight differences
Internet Fundamentals
Using a Web Browser
 Starting
and stopping the Browser
 The Web Browser’s window
 Getting around a “page” and the WWW
 Saving, printing, and mailing items from
the WWW
 Bookmarks - Keeping
track of favorite sites
 Setting preferences
and options
Internet Fundamentals
Finding Information
on the Web
using
 Directories
 Search
Engines
(Effective Search Strategies)
Internet Fundamentals
Searching the Web
 Guessing
Domain Names such as:
ibm.com or weather.com
maps.com or abcnews.com
 Performing
Keyword Searches
Using Search Engines
– Single keyword search (such as tennis)
– More exact search results (using 2 or more
words, or even a phrase such as women’s
tennis)
continued...
Internet Fundamentals
Searching the Web
 Complex
Search
– contains several words, but uses operators such
as AND, OR, NOT, and “phrases in quotation
marks”
 Examples:
– stock AND quotes
– “stock quotes”
– orange NOT county
– Web OR Internet
 Be
Patient and Persistent!
Internet Fundamentals
Search Engines
 What
is a Search Engine ?
 program
that connects you
to a data base or Web address
 used to perform a thorough search
 Some
Popular Search Engines
 Alta
Vista, Excite, Hotbot, Lycos, InforSeek, etc.
 Random
Browsing (takes too much time)
 Mark Favorite Sites (bookmark the sites)
 Use several Search Engines for a thorough
search
Internet Fundamentals
Some Favorite Search Engines
 Alta
Vista
(http://www.altavista.digital.com)
 Characteristic:
returns links to first 10 web
sites it finds that match your keyword(s)
and up to 19 additional pages of sites
 Exite
(http://www.excite.com)
 will
return a page with links to the first
10 sites it found that match you keyword(s)
 Hotbot
(http://www.hotbot.com)
Internet Fundamentals
Search Engines, continued
 Advice: Make bookmarks for Search Engine Sites
Search Engine
Alta Vista
Excite
HotBot
InfoSeek
Lycos
WebCrawler
Web Address (or URL)
http://www.altavista.digital.com
http://www.excite.com
http://www.hotbot.com
http://www.infoseek.com
http://www.lycos.com
http://www.webcrawler.com
Internet Fundamentals
Search Engine or Directory?
What’s the difference?
 Search
Engine - allows you to collect
and then browse information from more
sources (Excite, AltaVista, InfoSeek, etc.)
 Directory - generally doesn’t include
every single web page or resource.
Organizes resources of web pages by
categories. (Yahoo!)
Internet Fundamentals
Some Favorite Directories
Directory Name
 Yahoo!
Web Address (URL)
(favorite) http://www.yahoo.com
 Magellan
http://www.mckinley.com
 Point
http://www.pointcom.com
Internet Fundamentals
Built-In Search Pages
Netscape
and Internet Explorer
have 2 built-in search pages
– Netscape or Explorer Icon (upper right)
– Search Button (or Icon) on Tool Bar (at top)
Easiest
way to
perform a search
(for beginners especially)
N
Internet Fundamentals
Meta-Search tools
 Multi-Search
Engines
– Searches 5 or 6 engines at once
– prefer this type of search engine
(personally)
 Recommended
Multi-Search Engines
MetaCrawler http://www.metacrawler.com
Ask Jeeves http://www.askjeeves.com
DogPile
http://www.dogpile.com
Internet Fundamentals
Finding People & Businesses
 Looking
for Email Addresses
 Looking for home or business
addresses or phone numbers
 Sites
specializing in Email Addresses:
Four11
http://www.four11.com WhoWhere
http://www.whowhere.com
Internet Fundamentals
Using a Web Browser
Start your Web Browser
Double-click on your Browser icon
on your Desktop.