message queue

A message queue is a system that enables different parts of a software application to communicate by sending and receiving messages. Imagine it as a virtual post office where messages are stored until they can be delivered. When one part of an application needs to send a request or information to another part, it places a message in the queue. The receiving part then processes these messages one at a time, ensuring that no information is lost and that everything is handled in order. This helps improve efficiency and allows different systems to work together smoothly, even if they're not running at the same time.