A constant range of size data entry system that contains several methods for; an ease of use keyboard interface and; methods that automatically indicate(s) individual data and or character error(s) when compared to predefined data and or a character set. This allows the end user to enter data into a system that will compare the individual characters with a predetermined set and or array of characters. And will show the end user an interactive change in media based upon the values entered. The media change will show which characters do not match and or match up to the predetermined characters set. The program relies on a different data entry system then an ordinary word processor. So instead of buffering or expanding as one types and shrinking as one deletes, the program traverses over a set of predetermined data entry point and or text input fields with exclusive methods in place that simulate standard word processing.