From Mainframes to Multi-Cloud: How Cloud Computing Evolved and Where It's Headed

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Cloud computing traces its roots to 1950s mainframe time-sharing, when large institutions allowed multiple users to access a single powerful machine, a model that computer scientist John McCarthy predicted would one day become a public utility. The technology advanced significantly in the 1990s through virtualization, which enabled one physical server to run multiple virtual machines, boosting hardware efficiency and scalability. The modern cloud era began in 2006 when Amazon launched AWS, making infrastructure services publicly available; Google and Microsoft soon followed, turning cloud computing into a global standard. Today, most organizations operate across multiple cloud providers simultaneously, blending services from AWS, Azure, and Google Cloud to balance cost, performance, and security. Looking ahead, cloud computing is expected to power AI workloads, expand into edge computing for real-time processing, and shift toward serverless architectures that abstract infrastructure management away from developers.

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