11. The apparatus of claim 1 wherein said word ending means includes: means to store a representation of each actuated key in an ordered sequence, addressing means responsive to actuation of said selected key to read at least a representation of a preceding key actuation from said means to store, and table means addressed by said representation read from said means to store in response to actuation of said selected key to produce a corresponding data unit, some of said data units comprising a representation of said selected word ending.
11. The apparatus of claim 1 wherein said word ending means includes: means to store a representation of each actuated key in an ordered sequence, addressing means responsive to actuation of said selected key to read at least a representation of a preceding key actuation from said means to store, and table means addressed by said representation read from said means to store in response to actuation of said selected key to produce a corresponding data unit, some of said data units comprising a representation of said selected word ending. 12. The apparatus of claim 11 wherein said word ending means further includes: alpha sequence accumulator means for forming and retaining a sum of quantities, each of said quantities unique to a character key, in response to actuation of keys of said keyboard means, means for clearing said alpha sequence accumulator means on actuation of any key within a selected sub-set of non-alpha keys, and means for combining said data units with contents of said alpha sequence accumulator means on actuation of said selected key to produce modified data units, first comparing means for comparing a data unit from said table means with a first reference to detect a default condition, and second comparing means for comparing a modified data unit with a second reference and to identify a selected word ending from said modified data unit if said comparison with said second reference is favorable.