System controller and method for determining the location of the most current data file stored on a plurality of memory circuits

A memory circuit that is organized into memory pages includes control circuitry for (a) associating a designated one or more memory pages to a data file and associating with the data file a unique identifier index number generated by a system controller; and associating a time-stamp with the unique identifier index number every time the data file is stored or updated in the memory circuit, wherein all unique identifier index numbers for all files stored in the memory circuit are stored in a lookup table in the memory circuit with the latest time-stamp and the location in the memory circuit at which the file is stored.