- The document discusses serverless computing, which allows building and running applications without having to manage servers. It describes how serverless is an evolution from physical servers, to virtual servers in datacenters, to virtual servers in the cloud. With serverless, there is no server to manage, which eliminates responsibilities around provisioning, scaling, operations, availability and fault tolerance. Serverless applications are event-driven and pay only for usage, with continuous scaling. Common use cases provided include a 3-tier web app and image thumbnail creation.