Cloud computing describes wide range of useful services. For example, cloud computing allows you to move compute and data services off-site to a location-transparent facility. Cloud-based data can be made accessible via the Internet anytime, anywhere and is often less costly than locally hosted data. To decide how you — or your organization — will use cloud computing to best advantage, it is important to understand the services that make up cloud computing. The three major categories of services are Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). At present, the consumption market of Cloud Computing Stack Layers is concentrated in UK, Germany, France, Benelux, Italy, Spain and Russia. UK is the largest consumption area in the world, which occupied about 25.33% European market in 2016. The following areas are Germany and France. The leading players in European market are Amazon Web Services, Salesforce, Microsoft Azure, IBM,...