Cloud Computing Explained

What is the difference between cloud computing and sharing remote hardware and software? “Patrick Harr, Hewlett-Packard’s vice president of global cloud strategy, argue that recent technological and business developments make ‘the cloud’ a truly different way of using computer resources. … Harr says two key advances distinguish cloud computing from earlier versions of remote hardware and software rental and mark ‘a fundamental technological shift’.

One is ‘multi-tenancy,’ in which many businesses can take simultaneous advantage of a huge pool of powerful resources such as HP’s tens of thousands of servers.”