What does "serverless" mean in AWS?

The concept of "serverless" in AWS refers to a model where applications run without the need for direct management of server infrastructure. In a serverless architecture, developers can focus on writing code and developing functionality rather than worrying about the underlying servers or the operating systems they run on. AWS takes care of the provisioning, scaling, and managing of the servers automatically.

In practical terms, serverless computing allows developers to deploy applications or services by simply defining the conditions under which they should run, such as specific events or triggers. AWS Lambda is a prime example of serverless computing, where you can run backend code in response to events without managing servers.

This approach provides many benefits, including reduced operational complexity, automated scaling, and the ability to only pay for the compute time that is actually used, making it cost-effective for many applications.