18. The system as recited in claim 17, further comprising: second means for comparing said For and Against tallies against maximum values that each such tally can obtain, and if either said tally is within a preset limit of said maximum value, ceasing further analysis of a block of data by said tally means and operating said first comparing means.
18. The system as recited in claim 17, further comprising: second means for comparing said For and Against tallies against maximum values that each such tally can obtain, and if either said tally is within a preset limit of said maximum value, ceasing further analysis of a block of data by said tally means and operating said first comparing means. 19. The system as recited in claim 18 wherein said first comparison means renders said uncertainty determination by calculating a difference between said For and Against tallies and comparing said difference against a maximum expected difference therebetween, and if said comparison indicates that said difference is greater than a preset percentage of said maximum difference, indicating confusion regarding a choice as between said tallies.