Final answer:
The act of repeating input back to a user is called echo or echoing. It is commonly used in computer programming to provide feedback and confirmation to the user.
Step-by-step explanation:
The act of repeating input back to a user is called echo or echoing. It is commonly used in computer programming, especially in languages like Python and Java, to provide feedback and confirmation to the user.
For example, if a user enters their name, the program might respond by saying "Hello, [user's name]!" This repetition helps the user verify that their input was correctly captured and understood by the program.