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Connecting to the Web
User access Web sites through the public switched telephone network(PSTN) is the world wide telephone system that handles voice-oriented telephone calls. Nearly user digital technology, with the exception of the final link from the local telephone company to a homw, which usually is analog.
Dial -Up Lines
A Dial-up line is a temporary connection that user one or more analog telephone lines for communications. A dial-up connection is not permanent. Using a dial-up line to transmit data is similar to using the telephone to make a call. A modem at the sending end dials the telephone number of a modem at the receiving end answers the call, a connection is established and data can be transmitted. When either modem hangs up the communications end.
Dedicated Lines
A dedicated line is a connection that always is established between two communications devices (unlike a dial-up line in which the connection is established each time it is used. The quality and consisted lines provide a constant connection. Business often use dedicated lives to connect geographically distant offices. Dedicated lines either can be analog or digital. Digital lines increasingly are connecting home and business users to networks around the globe because they transmit data and information at faster rate than analog lines.
We are now done in the first to third Accessing Information's in the Web. In the next post, we are going to finish the remaining topic Accessing Information's.
So, this is for todays post. See you to the next post.
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