Transcript Using the Web Browser

Using the Web
Cyberspace Explorations Class
BOLLI – Spring 2005
How Does Web Browsing Work?
Email PC
THE
INTERNET
Email PC
SMTP
POP
ISP
WEB
SERVER
SMTP
POP
ISP
Browser PC
DNS - Domain
Name Server
How Does Web Browsing Work?
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The Process of Using a “Browser”
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You type the URL of a requested Web
page such as www.yahoo.com.
A message is sent to a Domain Name
Server (DNS) which returns the “IP”
address (e.g., 68.142.226.34).
The browser then communicates directly
with that address requesting a response.
The requested response comes back in
the form of an HTTP page which is
displayed by the browser.
What’s in a Web Address?
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Using a Domain Name
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URL (Uniform Resource Locator)
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Each page within a Web site has its own unique URL
The BOLLI Web pages are part of the Brandeis Web site and our “URL”
is: www.brandeis.edu/bolli/members
Format Rules
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For Brandeis University, you enter: www.brandeis.edu
A corresponding Internet IP address is substituted (i.e., 129.64.99.138)
by a “Domain Name Server”
You could optionally use the IP address to request a page
Cannot contain: spaces or special characters except “-”, “_” “/” and “.”
Must contain a minimum of three parts separated by a period “.”
Last part must be one of following: com, edu, gov, mil, net, us, ca, il, fr,
de, ru, etc.
Web Address Samples (http:// prefix is optional and implicit)
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www.heier.us
Finance.yahoo.com
www.irs.gov
www.knesset.gov.il
Major Web Browsers
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Internet Explorer (Microsoft Corp.)
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Netscape Navigator (Netscape Corp.)
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Firefox (The Mozilla Organization)
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Opera (Opera Software)
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AOL (America Online)
Internet Explorer
Netscape Navigator
Firefox (a/k/a Mozilla)
Opera
AOL
Major Browser Components
Important Toolbar Features
Prev Pg
Next Pg
Favorites
On/Off
Stop
Refresh
Home Pg
History
On/Off
Email
Page
Print
Page
More Toolbar Features
Google
Search
Field
Requested
Web
Page
Start
Google
Search
Get
Requested
Web Page
More Toolbar Features (cont’d)
Toolbar
Shortcuts
Sidebar Palettes
Favorites
History
Exercise: Web Search
Exercise: Web Search
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Go to Google (www.google.com)
Obtain the following information:
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Dates of Louis D. Brandeis’ birth & death
His wife’s maiden name
The date he was appointed to the Supreme
Court and by whom
What does the “D.” stand for?
The name of his first law firm
Locate a photo of Brandeis dressed in his
Supreme Court robe.
Bonus #1: What was the composition of the
Supreme Court when Brandeis appointed?
Bonus #2: What was the “Brandeis Brief”
Exercise: Download & Install Google
Toolbar
Exercise: Download & Install Google
Toolbar
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Go to Google home page.
Using Google, locate the page to
download the Google “toolbar”.
Install the Google toolbar on your
computer.
Go to Toolbar Download Page
Go to:
Toolbar.google.com
Then
Click
Here
Download Toolbar File
1. Click on Save to start the download
2. Select “Desktop” and click on Save
Install Toolbar File
1. Double click the program
icon on the desktop
2. Click on the Run button
3. Click on the Agree button
Install Toolbar File (cont’d)
4. Select the “Enable Advance
Features” option
5. Accept all entries and click Next
Exercise: Use the Google Toolbar
Exercise: Use the Google Toolbar
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Use the Google toolbar to lookup your home
address and find a map to your location using
only your phone number.
Enter phone number in
Google toolbar and press
“Search Web”
Click on the
MapQuest link to get
additional details
Exercise: Take the Google Toolbar Tour
Exercise: Take the Google Toolbar Tour
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Go to: http://toolbar.google.com/tour/toolbar.html
Exercise: Reset Browser Home Page
Exercise: Reset Browser Home Page
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Open Internet Explorer.
Go to Google home page.
Select “Tools”, “Internet Options”
from the Browser menu.
Select “Use Current”.
Click “OK”.
Go to another Web page and test
the home page button
Exercise: Reset Browser Home Page
1. Locate the desired new home page in your browser
2. Select “Tools”,
“Internet Options” from
the browser menu
3. Click on “Use
Current” and
select “OK”
Exercise: Save a Favorite Web Site
Exercise: Save a Favorite Web Site
1. Visit desired “favorite” Web site
2. Turn on Favorites
sidebar
3. Click on
“Add” in
Favorites
sidebar
4. Optionally change Name field and
click on OK
5. Optionally click on “Organize” in Favorites Sidebar for more advanced functions
Exercise: Search Within a Web Page
Exercise: Search Within a Web Page
1. Select Edit, Find (on This Page) from Browser menu
2. Enter desired search word(s)
in “Find what” box
3. Locate highlighted
occurrence of search
word(s)
Some Additional Exercises
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Work with multiple browsers
Reorganize the toolbar
Use Shortcuts – e.g., Ctl/Enter,
Spacebar scrolling
Use mouse scroll wheel
Block pop ups
Control character size
How Does Email Work?
Email PC
THE
INTERNET
Email PC
SMTP
POP
ISP
WEB
SERVER
SMTP
POP
ISP
WEB
SERVER
Download & Install Google Toolbar