A block diagram is a diagram of a system where the principal parts or functions are represented by blocks connected by lines that shows the relationships of the blocks. A block diagram of a banking controller displays a structural representation of a computer system as it gives a quick overview of the working process of a computer from inputting the data to retrieve the desired results. As per the image, angle sensor, trolley horizontal displacement sensor, and other sensors process the data to the CPU, which in turn passes along the information from Flash Memory, GPRS, and LCD. These requests then process out to the external circuit where it is related to both voice alarm or breaking controller.
