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The Internet, the world's most popular communication medium, is the future for data communication. Nowadays, computers can receive TV signals, decode video signals and function as fax machines. Using the computer, it is now much faster to send an email than letter to relative overseas. The time taken on the Internet to transfer information from one site to another may be only a few minutes.

But the problem is controlling authorised access to information on the Internet, since messages can be so easily posted around the world. This means that children can get access to pornography. Control of access to the Internet will be major project for the computer industry. Such control could be achieved by checking the user's ID and age. But what about children who use their parents' account or that of another older relative? These are the problems we have yet to consider.

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