CLOUD COMPUTING: A COMPREHENSIVE REVIEW OF ARCHITECTURES, SERVICES AND EMERGING TRENDS IN SCALABLE COMPUTING

Cloud computing has transformed the digital sphere by providing scalable, cheap resources and access to Internet computing.The paper offers an all-encompassing review of cloud computing, look into its architectures, models of services and ways of deploying, and recent developments.This further goes into virtualization, containerization and orchestration technologies such as Docker or Kubernetes.The review discusses service models like Infrastructure as a Service, Platform as a Service and Software as a Service and deployment models such as public, private, hybrid and multi-cloud.Important cloud-native principles, enhancing portability and operational efficiencies are also discussed.Challenges related to data privacy, compliance, interoperability and resource management are presented.Mitigation techniques encompass zero-trust security with automated tools.Also, future trends such as AI integration, green computing, and the convergence with 5G and IoT are explored in detail, giving insights for practitioners and researchers alike.