Every cloud architecture decision rests on a handful of core ideas, and this module covers them. You'll start with what cloud computing actually is and how the three service models, IaaS, PaaS, and SaaS, differ in how much you manage yourself and how much the provider handles for you.
Next you'll look at how providers lay out their infrastructure, using regions and availability zones to understand where your workloads physically run and why that affects latency, compliance, and reliability. You'll also learn the shared responsibility model, which sets out what the provider secures and what remains your job.
The module closes with a side-by-side look at the three big platforms, AWS, Azure, and Google Cloud, so you can compare them on services, pricing, and fit before you commit to one. The following modules build on these ideas, starting with networking.
An approachable introduction to cloud computing from Computerphile, using a pizza analogy to make the difference between running things yourself and renting them from a provider easy to picture.
A short overview of how a cloud provider's infrastructure is organized into regions, availability zones, and edge locations, and what each one means for where your workloads run.
How security duties are split between the provider and the customer, and how that split shifts across the IaaS, PaaS, and SaaS service models.
A side-by-side comparison of the three major cloud platforms to help you understand their strengths and decide which one to learn first. This is an older video, so check current pricing and services in each provider's documentation.