FeedBack is a system (in Spanish) that works to generate, print, analyze and correct exam results on paper. It is a great tool for teachers of all types, letting you administer all types of exams automatically and without effort. All this through a device that installs in your printer.What is the main advantage of FeedBack? Well, with it you can take control of exams, letting you, for example, compute the exam results of a course in just 5 minutes. An interesting complement to educational tasks and periodic evaluations.