Azure Serverless Computing is a cloud computing model where the cloud provider manages the infrastructure, and the developer only writes the code which is executed in response to an event. It allows developers to build and deploy applications without worrying about the underlying infrastructure.

Azure Serverless Computing works by creating functions that only run when triggered by a specific event. These events can include anything from an HTTP request to a message sent to a queue or a file added to a storage account. When an event occurs, the serverless function is triggered, runs the code, and then shuts down when the task is complete. This results in efficient resource utilization, lower costs, and less management overhead. Azure Serverless Computing can help developers to build scalable, event-driven, and responsive applications.