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Beginning of Paper
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The Asynchronous Transfer Mode has been chosen as the standard system concept for integrated broadband communication networks by the ITUT. The system is predicted to grow rapidly as soon as it becomes widely accepted by network operators and users. Why has communications evolved in history towards the ATM concept and why has it been chosen as the broadband solution?
In the late 1800's public telephone networks capa ....
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Middle of Paper
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.... of the PSTNs was an advantage of this scheme, however it was soon recognized as not being an optimum solution for data transfer.
The analogue PSTNs were unsuitable in terms of switching, capacity (bandwidth) and channel noise. In data communication applications, data tends to be transferred in bursts, separated by silence. The constant connection provided by circuit switching therefore does not provide optimum usage of the network resources. The PSTNs were o ....
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