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Alex Rivera
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Can anyone explain me why is virtualization needed for cloud computing? A single instance of IIS and Windows Server can host multiple web applications. Then why do we need to run multiple instances of OS on a single machine? How can this lead to more efficient utilization of resources? How can the virtualization overhead be worth it? Is it strictly a matter of economics - I have money to buy only 100 machines, so I run virtualization to pretend I have 1000 machines?
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