Cloud computing has become a hype today in the IT world. No doubt there are lot of attractive features talked about for which people will be interested. There are two types of cloud infrastructure which are available today, i.e. private cloud and public cloud. Private cloud is one in which the CPUs are dedicated for the user and optimization is being done through virtualisation within the limited capacity of CPUs which form a pool for virtualisation. In this case anyways the user is paying for all the CPUs so private cloud helps primarily to optimize your existing resources through virtualisation. There is apparently no difference to a situation when you host your servers in data center of a service provider, implement virtualisation and have option of deferred payment in opex model. But some organisations are there who might capitalise those investments and in those cases avoidance of capex really does not work. However, it does not provide any substantial reduction in CPU ...