Final answer:
The excitement for the new iPad among customers lining up for hours to be among the first to purchase it would be considered feedback in the system.
Step-by-step explanation:
The excitement for the new iPad among customers lining up for hours to be among the first to purchase it would be considered feedback in the system. Feedback is the response of a system when a change is made that itself influences the change. In this case, the change being made is the release of the new iPad, and the customers' excitement is the response or feedback to that change.