Patent US 4,085,446

A data storage and retrieval system facilitates interface between a human operator and a digital processing system or computer, by first manually selecting visual human word(s) in an identification table overlaid on a display board and next automatically retrieving information by its corresponding address code in conjunction with a magnetic card. Moreover, since the identification table and magnetic card are replaceable from one item block to another item block, numerous arbitrary and repeatable combinations of requested words and their corresponding addresses a different item block can be easily made for many different operators and themes by applying data processing and versatile programming.