Memory mapping is essentially a way for microprocessors to route data from one place to another. It assigns each device an address space in memory, which allows the processor to recognize what type of data it is dealing with and how to send it where it needs to go. This makes the transfer of data significantly faster than if the processor had to look up each individual bit by itself.   When a microprocessor receives an instruction, it reads the memory map first, which tells it where each device is located and what type of data should be sent there. The processor then sends the data along with instructions on what needs to be done with it (such as read or write) to that location in memory. After that, the processor will wait for any response from the recipient before continuing on with its task.     Memory mapping is important because, without it, microprocessors would have difficulty transferring information between devices quickly and efficiently. With memory mapping in place, processors are able to move information more quickly and can handle more complex tasks, such as running multiple applications at once or handling high-speed gaming graphics. Without memory mapping, these tasks would take much longer and would be much more difficult for processors to complete on their own.