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| n |
HTML
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– |
designed
for computers with “high” performance, color high-resolution
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display,
mouse, hard disk
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typically,
web pages optimized for design, not for communication
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| n |
Mobile
devices
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often
only small, low-resolution displays, very limited input interfaces
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(small
touch-pads, soft-keyboards)
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| n |
Additional
“features”
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– |
animated
GIF, Java AWT, Frames, ActiveX Controls, Shockwave, movie
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clips,
audio, ...
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many
web pages assume true color, multimedia support, high-resolution
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and
many plug-ins
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| n |
Web pages ignore the heterogeneity of end-systems!
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e.g.,
without additional mechanisms, large high-resolution pictures would
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be
transferred to a mobile phone with a low-resolution display causing
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high
costs
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