Walk into any modern office, and you'll find teams using Slack, files stored in Google Drive, customer data flowing through Salesforce—all cloud services. But ask someone to explain the difference between IaaS and PaaS, and you'll likely get blank stares. The cloud isn't mysterious once you see actual products in action.
Here's what cloud services actually mean: instead of buying a server for $5,000 and maintaining it in your office, you rent computing power from Amazon, Microsoft, or Google. Pay only for what you use. Same goes for software—no more installing programs from CDs (remember those?). Just log into a website.
Companies access servers, storage space, databases, networking tools, complete software applications, and analytics platforms through their internet connection. The pay-as-you-go model means a two-person startup pays $50 monthly while an enterprise spends $50,000, each getting appropriate resources.
Why bother learning specific examples? Because "cloud services" covers everything from basic email hosting to NASA-level computing infrastructure. Your neighborhood coffee shop needs different tools than Netflix. Looking at real products—what they cost, what they do, who uses them—cuts through the marketing hype.
Three main buckets organize these services. Infrastructure as a Service (IaaS) rents you the basic building blocks: virtual computers and storage. Platform as a Service (PaaS) gives developers ready-made environm...