Serverless computing is a cloud model where developers run applications or functions without managing servers directly. Servers still exist, but the cloud provider handles much of the infrastructure management.
Why serverless is useful
Serverless can scale automatically, reduce idle infrastructure cost, and simplify deployment for event-driven workloads. It is often used for APIs, background tasks, data processing, and automation.
Serverless and FaaS
Function as a Service (FaaS) is one common serverless model where small functions run in response to events.
Serverless is not magic. Teams still need good architecture, monitoring, security, and cost controls.