what's cloud computing? IaaS
Cloud computing has changed the ITC industry.
Companies like Amazon, Google and Microsoft have built large computing clusters of as many as 1 million servers.
Each server can run multiple virtual machines and these virtual machines are rented to customers.
This type of service, where virtual machines are rented, is called Infrastructure as a Service (IaaS)
reference:
Cloud Elasticity: going beyond demand as user load
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