Transcript chapert4-mjc - Mercer County Community College

Surfing the Net
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Surfing the net
Browsers – Internet Explorer, Firefox, others
Dissecting URLs
Some web page definitions
Browser navigation
Bookmarks
The web browser’s cache
What is Surfing?
• Surfing means to use a browser to go from
site to site to find information
• Browsing is a synonym for “surfing the Net”
• A link to a word or picture triggers the object
of the link
What is a Browser?
• A browser is the program you run when you
surf the Internet
• A browser can download pictures, audio, and
video content
• Browsers need to be configured to display
content as well as secure
• Some browsers include Internet Explorer.
Firefox, Safari, Netscape, and Opera
Internet Explorer (IE)
• Pre-installed on computers with Windows O/S
• The handheld Pocket IE runs under Windows
CE
• Currently IE is the most commonly used
browser
– Over 58% of internet users use IE
Firefox
• An enhanced browser built on open source
code for Netscape Navigator
• Open source code is available to the public
free of charge
• You can download Windows, Linux or
Macintosh versions of Firefox
• Is the number 2 browser with +35% of
Internet users
Safari
• Apple’s default Web browser for the
Macintosh computer
• Users need to run the Mac OSX operating
system
• 1.5% of Internet users use Safari
Understanding URLs
• URL means universal resource locator
• URL parts occur in this order:
– Protocol
– Server name
– Port number (optional and rarely seen)
– File name (optional)
– Anchor (optional)
• URLs aren’t exclusively used for web pages
URL Definitions
Dissecting a URL
http://www.mccc.edu/student_library.shtml
http: You use Hyper Text Transfer Protocol to access this
page
// tells us that the page is hosted remotely
www tells us that the page is on a world wide web server
mccc tells us that the page is part of the Mercer County
Community College’s network
edu tells us that this site is an educational institution
student_library.shtml is the specific file for this page
Using a URL to your advantage
• Sometimes a page you ask for no longer exists
Error 404 page not found
• The page may be gone or the URL may have
changed
• Try slicing off the last piece* of the URL and
see what you get. It may lead you to the
page you wanted
• This method also works for pages you like
and want to look for more on the same topic
* You may need to do this a couple of times
Moving back & forward
• You already know to use the back & forward
button to move around one page at a time
• By right clicking on your back button, you
get a list of the places you’ve visited recently
• Using the dropdown on your address bar also
will give you a list of recently visited sites.
Your Browser’s History
• Viewing your browser’s history will give you a
more complete list of visited sites
• You can also control how much history you
keep as well as deleting your history should
you choose
Bookmarks
Bookmarks/Favorites
• Though a history list remembers where you’ve
been, it remembers every site you visited both
good and bad.
• To remember the “good” sites you’ve run
across use bookmarks (IE uses the term
Favorites)
• Bookmarks are a personalized list of sites you
want to remember
Bookmarks/Favorites
• Most browsers come with some preset
bookmarks
• Let’s see what you have, click on “favorites”
or “bookmarks” to se what’s there
Bookmarks/Favorites
• The easiest way to bookmark a site is to
actually at the site itself
• Let’s bookmark a site
– Go to www.mccc.edu
– Click on bookmarks or favorites
– Add this bookmark
– Click on OK to save the bookmark
Bookmarks/Favorites
• After you’ve collected a number of
bookmarks, you’ll soon find that the list can
be cumbersome
• You will need to organize them into
categories/folders (like you do with computer
files)
• Remember to delete bookmarks that you no
longer need and ones that came with your
browser that you don’t want.
Bookmarks/Favorites
• Spend some time deciding what categories
you’ll want to break your bookmarks into as
well as sub categories
• Music
– Jazz
– Classical
– Hip-hop
– Rock
Bookmarks/Favorites
Music
– Classical
– Blues
– Country
– Jazz
– Swing
– Bebop
– Charlie Parker
– Dizzy Gillespie
– Fusion
– Smooth
Now it’s your turn to work with
bookmarks