Question

The symbol used to indicate input and output of a program is called...................​

Answer 1

Answer:

Also known as an “Action Symbol,” this shape represents a process, action, or function. ... Often contains “Start” or “End” within the shape. Document symbol. Represents the input or output of a document, specifically.

Answer 2

The symbol used to indicate input and output of a program is referred to as data symbol

Explanation:

• Data symbol is the symbol that is used to indicate input and output of a software information this is to be had for input or output in addition to representing resources used or generated.
• While the paper tape symbol also represents input/output, it's far outdated and now not in common use for flowchart diagramming.

Answer - Data Symbol