Building applications using cloud services that automatically manage servers and scaling. Like focusing on cooking while someone else handles the kitchen management.
A photo-sharing app uses serverless architecture where image processing happens automatically when users upload photos.
These are major cloud providers' Function-as-a-Service offerings, commonly used as core building blocks in serverless architecture. In practice, serverless architecture often also includes managed API gateways, event buses, databases, storage, and authentication services in addition to functions.