Abstract
Cloud computing has revolutionized IT resource management, providing scalable and flexible internet services that significantly differ from traditional on-premises infrastructure. This paper presents a comprehensive overview of cloud computing systems, examining their architecture, service models, deployment models, and the advantages and challenges they pose. The architecture of cloud computing is foundational, comprising client-side devices, cloud infrastructure backend, and networking components. Service models are categorized into Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), each offering different levels of abstraction and control. Deployment models include public, private, hybrid, and community clouds, each tailored to specific organizational needs. The advantages of cloud computing, such as cost efficiency, scalability, accessibility, disaster recovery, and innovation, are significant. However, challenges like security and privacy concerns, downtime and reliability issues, compliance requirements, and vendor lock-in necessitate careful planning and management. Understanding these facets is crucial for organizations to effectively leverage cloud computing and navigate its complex landscape.
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