At its core, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, and more—over the internet. Instead of maintaining physical servers or data centers, businesses can access computing resources on-demand, paying only for what they use. This model has revolutionized IT by allowing companies to scale operations more efficiently, reduce infrastructure costs, and access advanced technologies without heavy upfront investment. Cloud services typically come in three forms:
- Infrastructure as a Service (IaaS): Provides virtualized computing resources over the internet. Companies can rent storage, servers, and networking features as needed.
- Platform as a Service (PaaS): Offers hardware and software tools over the internet, mainly for application development. With PaaS, developers can build, test, and deploy applications without worrying about underlying infrastructure.
- Software as a Service (SaaS): Delivers software applications over the internet. Popular SaaS applications include email services, CRM systems, and collaboration tools.