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Cloud computing is one of the emerging technologies that will lead to the next generation of Internet. It provides optimized and efficient computing through enhanced collaboration, agility, scalability, and availability. In this paper, the evolution of the Cloud is discussed, the cloud computing model is explained, a set of cloud computing infrastructure metrics is listed, the cloud service model architectures are described, exemplary implementations of cloud service models are analyzed, and intriguing facts about cloud computing status and future are shared.
Bojanova et al. (Tue,) studied this question.