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Fujitsu launches cloud platform for big data
Fujitsu is developing a cloud platform-tentatively named the Convergence Services Platform that will leverage "big data." Fujitsu will offer this platform in the fourth quarter of 2011, followed by a phased service release.
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Question by Veli: What is Cloud Computing? Layperson giving 10 points?
I am from literature background with basic understanding of the Net and a few of the office software. I do not know if an application software and operating software are two different things or one.
Here are a few of my questions, please explain just the basic idea,

Can it be installed on a personal comp? Most forums talk about companies so…

If it works on a common platform (platform meaning not the way programmers understands it but a layperson, since they say it works on a common network) how will this affect the security?

In the current state of affairs, if my computer is disconnected from the internet, i can still keep my work on, on a word or excel sheet; since cloud computing is entirely web-based, what will happen to my work, if the cloud comp gets disconnected?

Best answer:

Answer by Zarn
Cloud computing is using internet connectivity to access computing services not present locally. An example of this would be Dropbox, or Google Docs. In a sense, Steam would also be an example of cloud computing, as would Facebook and other social media.

Cloud computing would ordinarily not be installed per se on a personal computer, but a client can be installed on a personal computer to gain access to cloud computing.

Security is an issue, as is data lock-in. There’s no layperson explanation available there – it would concern such things as cryptography (both symmetric and asymmetric) and various cryptographic attacks.

If a computer using a cloud based service gets disconnected, there are two ways this can be handled. Either the computer starts buffering data (in order to transfer them once connectivity is restored – Dropbox does this for instance), or the computer shuts down the service (because connectivity is interrupted – Facebook does this).

Cloud computing isn’t necessarily _web based_ per se, it is actually based on _internet connectivity_. Two different things, though the difference is usually too subtle for a layperson to discern, so I won’t go into detail there.

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