In 1997, BIO150Y designed the following tutorials to help students learn
how to use the Internet efficiently. (Note: Some of the material in
these tutorials may now be out of date.) For further details on how to work
through the tutorials see the section below on "How the tutorials work".
Select highlighted words (hyperlinks) for more information. Some of
these links call up information on other computer systems.
To return to the tutorial from another page, point+click on the "Back" button
from Netscape's top button bar.
At any time, you can exit a tutorial simply by selecting the "BIO150Y Home
Page" link at the bottom of each tutorial page.
Each tutorial can be completed in less than 15 minutes and has several easy
What are hyperlinks?
Hyperlinks are connections to other documents, pictures, sound clips, or
even movies! By pointing and clicking you can move from document to document
with relative ease.
These links can be to documents stored at the same site, known as "internal
links", or to "external links" that can reside anywhere on the Web!
"Local links" point to places within the same document.
Hypertext is the text that has links embedded within it. You're reading
hypertext right now!
External links are links to documents located on computers out on the Web.
Sometimes these links take a long time to connect to.
The link sends a request for the document to the computer at the site. The
computer at the site sends the document in packages back to your computer
to decipher. All this takes place relatively quickly on a good day. If it
is taking too long to connect to an external link you can always break the
connection by clicking on the "Stop" button on the top right of Netscape's
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