What is the diagram called that shows circuit stages as geometric blocks and signal paths as lines?

• A. Block diagram
• B. Schematic design
• C. None of the above
• D. Blueprint

Answer: (A)

Block diagrams present systems at a high level, using geometric blocks to represent major stages and lines to show how signals flow between them. This matches the description of circuit stages as blocks and signal paths as lines, making it the best fit for illustrating overall architecture without getting into component-level details. A schematic design shows exact electrical connections and component symbols, which is more detailed than what a block diagram conveys. A blueprint is a general term for detailed plans, not the specific style of showing block-based stages and signal paths. So this diagram type is the block diagram.