Imagine you're at a busy coffee shop where orders are taken at the counter and then passed to the baristas. If every customer had to wait at the counter until their drink was ready, the line would quickly become unmanageable. Instead, customers order, pay, and then move aside while their drinks are prepared. This system keeps the line moving smoothly and ensures that everyone gets their order in a timely manner. This is the essence of asynchronous processing and message queues in system design.

Message Queues: