Advances and Emerging Trends in Cloud Computing: A Comprehensive Review of Technologies, Architectures, and Applications

Abstract

Cloud computing is an underlying pillar of the modern digital infrastructure as it provides the foundation for real-world, flexible, and low-cost access to computational resources across numerous diverse industries. In this paper, we provide a comprehensive overview of the key technologies, service models, architectural patterns, emerging trends, and trends that are shaping cloud computing's growth. The study presents the foundational roles of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), as well as some enabling technologies, including virtualization, containerization, automation, and orchestration tools. The paper also examined architectural and deployment models, vital to the investigated system, such as public, private, hybrid, and multi-cloud systems, as well as the adoption of microservices, serverless computing, and cloud-native DevOps practices. We also considered the integration of Artificial Intelligence (AI) and Machine Learning (ML) as trends that have recorded growing concerns around security and compliance, sustainable cloud practices, cost optimization strategies, and the challenge of vendor lock-in are critically analyzed using relevant case studies. In conclusion, the paper presents a guide that outlines future perspectives regarding common innovations that ned to be considered, especially, quantum computing and 6G-IoT convergence.. The findings of this study support actions that encourage innovative technologies, firm security panels, innovation, research, sustainable practices, and collaborative standard-setting to ensure that the cloud future is sustainable. This present review has presented some contributions to the academic and industrial sectors through the presentation of innovative structural synthesis of the prevailing landscape and the provision of executable insights that can enhance practitioners, researchers and policymakers in the rapidly evolving domain of cloud computing