What is Cloud Computing?

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By Ragu. Posted on 07 May 2011.

The term cloud probably comes from the cloud image used to represent the Internet. Cloud computing refers to the Internet based computer technology for different services.

Cloud computing is big and growing bigger every day. The searches for cloud computing in the search engines are rising (Visit Google Trends) whereas the searches for Grid and Distribution computing are falling, probably because; it combines some of the concepts of Grid and Distribution.

When you need more computing power, you get it instantly from the cloud. When you are done with it, you release it back to the cloud. It works as the same way as gas or electricity. You turn on when you use and pay only for the usage. You can put your website or software to the cloud and then disconnect it when you are done. Like we do not worry what is in the cloud, we do not worry about the hardware as it replaces servers and routers. The reasons for moving to cloud computing are scalability, instant availability, to save money, and virtual hardware. With Cloud computing, there is no boundary to handle heavy traffic with low cost and instant availability.

Many companies offer cloud services. The ten companies to be watched as publised in networkworld.com are Amazon, AT & T, Enomaly, Google, GoGrid, Microsoft, NetSuite, Rackspace, RightScale, and Salesforce.com.

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