What does the input/output symbol in a flowchart look like?

The input/output symbol in a flowchart is represented by a parallelogram. This shape is specifically used to indicate operations where data is entering or leaving the system, such as input from a user or output to a display.

In flowcharting, different shapes are designated for different types of actions. For example, a diamond is used for decision points, a rectangle typically represents processing steps or actions, and a circle can indicate the start or end of a flowchart. The parallelogram's distinct shape helps to clearly communicate that an operation involves data input or output, facilitating better understanding of the process being depicted.