I have read some time back that some people link the cloud with the web and internet. Reason given was that previously the cloud was used in network diagrams to indicate the Internet or Web. Therefore, cloud computing should be public.
Well first thing's first. Things are always changing, especially technology. Computers used to be as big as a flat, but now they can be as small as your hand phone. Likewise just because the cloud was used previously to indicate the Internet or Web, that doesn't mean that the definition of the "cloud" must always be that. Using the example of the carriage. Previously carriage mean horse carriage. Now, it can be train carriages, or rail car carriages. I think you get the drift.
Like it or not, cloud computing must cater for businesses that wish to have more security for their applications and data. Reason is quite simple. Increasingly, technology is used as a crucial differentiating factor in running businesses. Heard of Goldman Sach's powerful computers and software that are used to do flash trading? Do you think Goldman Sach will put this technology in a public cloud? No way.
Why are people so against private cloud? That's because I guess they think that there's no business opportunity in private cloud. What's stopping someone from buying a bunch of servers and virtualising it? Well, Cloud computing goes beyond virtualisation. Amazon has started the first step in recognising private cloud and providing services to cater for it. More will follow soon I hope.
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