Which symbol is commonly used to represent input and output operations?

Which symbol is commonly used to represent input and output operations?

• A. Rectangle
• B. Parallelogram
• C. Diamond
• D. Circle

Answer: (B)

In flowcharting, input and output actions are shown with a parallelogram. This shape stands apart from the rectangle, which is used for processing steps, the diamond for decisions, and circles or ovals for start/end or connectors. The parallelogram visually signals data moving into or out of the system, which is exactly what input and output do—pull data from outside sources or send data to an outside destination. So when you see that slanted box, you know the step involves reading input or displaying output, rather than performing a calculation or making a yes/no decision.

In flowcharting, input and output actions are shown with a parallelogram. This shape stands apart from the rectangle, which is used for processing steps, the diamond for decisions, and circles or ovals for start/end or connectors. The parallelogram visually signals data moving into or out of the system, which is exactly what input and output do—pull data from outside sources or send data to an outside destination. So when you see that slanted box, you know the step involves reading input or displaying output, rather than performing a calculation or making a yes/no decision.