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elizabethsimon
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Re: Cloud Computing ... and a mobile society
elizabethsimon   7/23/2014 11:48:02 AM
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You make a very good point. It bothers me when I see rosy predictions of how much better things will be when we have everything in the cloud. There's still way too many places where you can't get a cell signal for me to be convinced to put all my data in the cloud. Maybe as a backup copy but I'm with you. I prefer to keep my data with me.

 

R_Colin_Johnson
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Re: Cloud Computing ... and a mobile society
R_Colin_Johnson   7/23/2014 11:35:14 AM
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I agree entirely in the wireless world. IBM's hardware/software/storage solution is not oriented toward wireless consumers users, but Big Data and analytics tha can be quickly configured run and then disassembled--the rental paradigm.

DrQuine
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Cloud Computing ... and a mobile society
DrQuine   7/23/2014 10:58:24 AM
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Cloud computing is great when you are connected - and as a mobile society we can gain access to our information from many locations. However, cell phone users are all too aware of the many places in which they cannot get a signal. For WiFi only devices, the problem is much worse since signals may be absent or require expensive subscriptions. I believe in having local access to all my information (hence my laptop computer rather than a mainframe terminal connection). I accept that I cannot have access to the Internet at all times (cannot access Wikipedia for information that I never knew) - but I expect to have access to all my legacy information all the time.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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