This is a block diagram. A block diagram is a graphical depiction of a system that shows how the system works. Block diagrams help us comprehend the operations of a system and establish relationships within it. Using EdrawMax Online create a block diagram of your chosen system. As the name implies, a block diagram is a drawing illustration of a system block represent whose major parts or components. These blocks are joined by lines to display the relationship between subsequent blocks. Learn more details from this diagram, and try to make your block diagram with ease now.