What is cloud computing ? tell me
The idea of the "cloud" simplifies the many network connections and computer systems involved in online services. In fact, many network diagrams use the image of a cloud to represent the Internet. This symbolizes the Internet's broad reach, while simplifying its complexity. Any user with an Internet connection can access the cloud and the services it provides. Since these services are often connected, users can share information between multiple systems and with other users.
Examples of cloud computing include online backup services, social networking services, and personal data services such as Apple's MobileMe. Cloud computing also includes online applications, such as those offered through Microsoft Online S ...more
There are a couple of different Cloud Computing strategies that are common. The first is a Content Delivery Network (CDN) such as Amazon's cloud service.
A CDN lets you upload a file to one server and then have it distributed across tens, hundreds or even thousands of servers around the world. The file will be available for download from any one of those servers, and if one server fails, the user automatically downloads from the next available server on the cloud. By default, the user downloads from the closest server or the server with the lowest ping time. The advantage is that there is an extraordinary amount of redundancy and the speed at which users can download will likely increase. In addition, the traffic load from the downloads is taken off your main/central webserver where you host your web pages.
Another strategy is to form a linked network of tens or hundreds of servers that all work together ...more
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Cloud computing comes into focus only when you think about what IT always needs: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software. Cloud computing encompasses any subscription-based or pay-per-use servic ...more