26. The system of claim 24 , wherein the grid comparison comprises a calculation of cell values along grid rows, and wherein values of cells within a row M are purged from memory after all cells in the row M+1 have been calculated.
24. The system of claim 19 , wherein the calculation of the editing distance for each of the at least two candidate words comprises a grid comparison between each candidate word of the at least two candidate words and the received sequential string of characters.