The term cloud is used as a metaphor for the Internet, depending on the cloud drawing used to depict the Internet in computer network diagrams as an abstraction of the original infrastructure it represents. Usual cloud computing providers distribute common business applications online which are accessed from a web browser, whereas the software and data are stored on servers.
Cloud computing is placed to take over the world, or at least possibly reinstate Microsoft Outlook.
The cloud concept is simple: It’s a way to access your data and apps from anywhere, via the Internet (or “the cloud”).
In general, cloud computing customers do not own the physical infrastructure, instead avoiding capital expenditure by renting usage from a third-party provider
Yet everyone from Gartner Group to Google has a slightly different take on cloud computing: It can be whatever thing from storing and sharing documents on Google Docs to manage your entire company
operations using a remote, third-party data center. Some imagine it as a way to compute without operating systems, or pesky local client programs, and with minimal hardware needs (just a basic client machine).
Basically the function is to construct of the hardware from the service, as of the location of the servers is not as important as easy access to the data. Perhaps cloud technology will have a trace in every business that does IT within the next five years.
The particular type of cloud computing that the business world could take advantage of requires massive server cluster farms and super fast network bandwidth. It also requires that companies be standing by to transfer their data to a third party. A few small companies, among them Zoho.com (which offers business
apps, such as word processing and task lists) and Box.net (which supplies online file storage) have recognized themselves as SaaS (software as a service) providers, with varying degrees of success. But SaaS is mainly a race between Google and Microsoft to provide advertiser-supported cloud applications to customers.
Depending on the SaaS provider, data can be encrypted from point to point, and as services are Web-based, they’re very simple to patch. For example, Google can take action to a new security threat devoid of customers even being aware of the problem—or the fix. But
end users fundamentally would have to entrust their data to an outside entity, So that the company
is working to allay the fears that make trust hard to achieve. “Google is investing huge amounts of capital and hard service equity to ensure that it can protect data better than someone can do themselves. “Cloud computing will be additive. Usage style will change, and users will observe primarily to the cloud for most of the things they revolve to their PCs for today.”
Yet others aren’t as optimistic about cloud computing. Forrester Research analyst cautions that it’s not quite ready for prime time. Add to that the privacy, network bandwidth, and political hurdles yet to address, and it looks as if cloud computing will have to drop down to earth a bit more before it can enjoy
widespread adoption by both consumers and businesses.
The framework is in an early phase of development—it’s almost experimental, rather than a trustworthy and trusted computing paradigm. Ironically, even though Google is battling to dominate the cloud, some of its apps, such as Google Earth, still cache a incredible amount of data locally to speed up operations. —Source Internet & Magazines
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