An apparatus (38) for storing data includes a storage media (14). Also included are a number of vertical bars (40), each providing a vertical edge (50) for defining columns (44), and a number of horizontal bars (42), each providing a horizontal edge (52) for defining rows (46). The vertical bars (40)...http://www.google.de/patents/US5545890?utm_source=gb-gplus-sharePatent US5545890 - Apparatus and method for storing and reading data
