Cloud Computing IaaS falls among the three classic divisions of models – IaaS, PaaS and SaaS. Many talks about cloud, but few actually know what they are talking about. Today many talks about Cloud Computing, but few actually know what they are talking about and how the system works. This misinformation and little information, often spreaded by peoples on news type sites, where the writers considers themselves to be sufficient to be able to speak of a technology. The cloud computing is becoming, like passing comments about the football on next Monday morning, most makes a lot of talk but often never played a real match.