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Q&A

Q1:

What is the difference between digital communication and other communication, anyway? Does digital mean it uses HTML?

A1:

When information is transferred as distinct bits of information, which are essentially numbers, it's called digital. It's much easier to store, retrieve, and process information without losing or changing it when it is transferred digitally. Any information from a computer (including HTML) is by its nature digital, and in the not-too-distant future, all telephone, television, radio, and even motion picture production will be digital. Many mobile phone networks are already digital, and high-definition (HD) television is digital.

Q2:

How soon can I start designing Internet web pages that aren't limited by what people can transfer over a dial-up modem?

A2:

That depends on who you want to read your pages. Unfortunately, there will be quite a few 56Kbps dial-up modems in use for several years to come. The good news is that the number of people with 1Mbps (1,000Kbps) or faster cable, copper-optic, and wireless broadband connections is growing rapidly. That difference of 18x in speed will lead more and more web page publishers to offer separate high-speed and low-speed sites; many are already offering media content in varying sizes for each connection speed. As long as you provide users with the ability to bypass bandwidth-hungry content such as video and music, you shouldn't have anything to worry about.

Q3:

How do I convert a normal XHTML document to XHTML Mobile?

A3:

Because the syntax is identical between the two languages, the main trick is to eliminate features that aren't supported in XHTML Mobile, such as frames. Beyond that, your main challenge is in scaling down any images and simplifying styles so that pages look good on a small display that has potentially fewer colors to work with.


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