The origin of cloud computing can be traced back as far as 1961 when John McCarthy first conceived the idea. His vision was that computation should be arranged and organized as a public utility to lower the cost of computing, enhance reliability, and relieve users from owning and operating complicated computing infrastructure. And, since then, improvement in legacy technologies like virtualization, commodity and Grid computing has brought about the realization of the cloud computing paradigm. Cloud computing’s flexibility and scalability has continued to enhance the agility and effectiveness of huge organizations, meeting reliability, and the efficiency of large-scale applications. However, performance requirements remain a serious concern and studies and have shown that performance variability is a critical concern for cloud application providers. The reason for that is because it impacts a lot the end-user’s quality of experience. In this discussion, we are going to see in details what cloud computing is, clouds deployment models, delivery models, datacenters, and more.
