Data storage device using an external reference pattern

New, more efficient and robust data storage devices, systems and techniques are provided. In some aspects of the invention, a new form of data storage device is provided, incorporating data storage cells, and a read/write device connected with an auxiliary structure. The auxiliary structure elaborates on the simpler data written in the data storage cells to generate more complex, complete and meaningful data. In some embodiments, the physical arrangement, or other attributes, of structural storage device elements serve as a patterned reference device for data enhancement and supplementation. In some embodiments, the data enhancement and supplementation results from one or more chemical and/or physical reactions, in a sequence of such reactions, between writeable domains, auxiliary structure or the simpler data.