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Lecture #06
INT20CN Computer Networks
Tutorial #6
- Before coming to the tutorial, use your browser to "view source"
for this tute sheet. Can you understand the HTML markups
used? If you don't, ask for it to be explained in the tutorial
- Show[1] the <A> tag that is
needed to make the string "ACM" be a hyperlink to
http://www.acm.org
.
- In the Web materials for INT20CN, your lecturer (usually) prefers
logical markups for text emphasis. The alternative
is to use physical markups. Why do you think purists
recommend the use of the logical markup?
- In the lecture notes, mention was made of the philosophical
difference between designing for the "structure" of a Web page,
versus designing for its "appearance". Explain the difference
between each of these, and comment briefly on their advantages and
disadvantages.
- In this lecture, we discussed the
authoring of what we termed Web pages. You will
also commonly hear people talk Home pages and Web
sites.
- What is a Home Page, and how is it different to any
other Web page?
- What is a Web site, and how is it different to a Web page?
- Philosophical question: Why do I have to deal with this stuff? In
general, most Web-page authors do not write HTML code "by hand" --
they either use a Web Authoring package such as DreamWeaver, MS
FrontPage, Claris HomePage, etc, or alternatively they use the
"Export as HTML" option in their favourite word processor. Give at
least one reason why your lecturer regards it as useful for a
student in this subject to have a rudimentary knowledge of HTML.
- Research 1: In the lecture notes, the "hyperlink" example showed the value
of the HREF as a full URL. At least two other variations exist for
the value of the HREF. Discover what they are, and how to use them.
Hint: they're all used in this tute...
- Research 2: One interesting aspect of the Web is that the Netscape
people have defined a de facto standard set of 216 "Web
Colours" which their browser will render correctly. Other colours
will (often) simply be mapped by Netscape browsers to the "closest"
of the 216 available. Other browsers have adopted this set of
colours as well.
- Why do you think Netscape specified 216 colours, when almost all
modern computers have at least "8-bit" video, and can therefore
display 256 colours?
- Find out how you specify "Netscape compatible" colours in the
standard hexadecimal RGB format (where, eg, white is
"
#FFFFFF
").
- How should this affect your choice of colours in Web backgrounds
and images?
- Research 3: The Web Accessibility Initiative is a project of the
World Wide Web consortium. Find out what you can about this
initiative, and its relevance to good design of Web pages.
These tutorial exercises accompany
Lecture #6.
See Prac #6 for the practical exercises
accompanying this tutorial.
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Copyright © 2001 by
Philip Scott,
La Trobe University.