An electrically addressable data storage unit has a matrix of rows and columns of data storage arrays on a single substrate. A system-resource-accessing portion of the HTTP request is processed when the HTTP request includes the predetermined keyword. A first optical source is operable to generate a first optical signal having an operating frequency. The control signal include a clock signal, a shift signal, a capture signal, and a update signal. The invention also relates to methods of making such optical fiber composites and devices that include such optical fiber composites.