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History of cloud calculating The word "cloud" is used to represent the internet and other communications systems. Cloud computing is the result of an development of the widespread adoption of virtualization, service-oriented architecture, autonomic, and utility computing systems in the past, telecommunications businesses mainly gave simply committed, point-to-point data circuits for their users. Beginning from the 1990's, virtual private network solutions was included in their contributions. It made the telecommunication businesses offer equally improved services at which cutting back on cost as well as using resources effectively. The term "Cloud" represented the calculating space between the provider and the end user. In 1997, Professor Ramnath Chellapa of Emory University and the University of South California defined cloud computing since the brand new вЂњcomputing paradigm where the boundaries of computing will likely be determined by economic rationale rather than technical limits alone.вЂќ (Eze Castle Integration Inc., 2013) From the late 1990s, the internal efficiencies of cloud computing and its importance was better known by businesses. Back in 1999, the thought of distributing enterprise-level applications to end users via the Internet was done by Salesforce.com who had been the first significant movers in the cloud stadium. Customers with internet access were able to purchase this service affordably. In the early 2000s, Amazon.com introduced the web-based retail services.The first major organization to update its data centers was Amazon It only used 10% of their capacity due to the simple fact that other companies were nervous about unexpected spike in the capacity needs. The new cloud computing infrastructure model permitted Amazon to exploit their current capacity with much grea...