A mechanism for managing peak power in a memory storage array that includes sub-array blocks may reduce the peak currents associated with read and write operations by staggering the wordline signal activation to each of the sub-array blocks. Each data collection system includes a processor for receiving and formatting financial data received from the data sources, wherein the formatted financial data has a data field including a first data source identifier identifying the data source of the formatted financial data and a first system identifier identifying the data collection system formatting the formatted financial data. A sensor is used for sensing the reflected light. The tiles are positionally ambiguous in that they need not be located on the floor in the same position they occupied in the web for the flooring installation to exhibit the desired uniform appearance.