Explainer: How IaaS, PaaS and SaaS Differ in Cloud Computing

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Cloud computing lets people use computing resources over the internet rather than owning and maintaining physical hardware themselves. The article explains three common cloud service models: IaaS, PaaS, and SaaS. IaaS provides virtual servers, storage, and networking, leaving users in charge of their operating systems and applications. PaaS offers a ready-made environment for building, testing, and deploying software, so developers can focus on code instead of server management. The piece uses everyday analogies, such as renting an empty apartment or a fully equipped kitchen, to clarify how control and responsibility vary across these models.

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