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DQ 1: On the page xxx of our text book "Telecommunication Essential", the author, Lillian Goleniewski explains the three areas of remarkable development that drive our networking evolution. The author says,

There are three main measurements of the digital world:

¦ Processing power, measured in the number of transistors and operations per second
¦ Storage, measured in the number of bytes
¦ Bandwidth, or digital data transmission, measured in bits per second

At the end, she concludes, "As with CPUs (cost per MIPS) and storage (cost per KB), the cost per Kbps of bandwidth is rapidly approaching $0".

Do you agree with the author of the trend (Cost) rapidly approaching $0? If you don't, why?

If you do, then do you believe that the cost of Processing Power, Storage Power and Networking speed, will eventually be zero and we (normal people) will get these things for free.

DQ 2: There are two kinds of switching technologies in telecommunication: Circuit Switching and Packet Switching. Which one comes first? Which one is more complicated? Which Switching Technology is easy to implement for voice communication?

Please see the attachment. Is it appropriate to use the analogy of train track vs. free way system to explain Circuit Switching vs. Packet Switching?

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