5. A computerized method as in claim 1 wherein said receiving of user generated alphabetic signals includes receiving alphabetic signals representing alphabetic characters of either upper or lower case.
5. A computerized method as in claim 1 wherein said receiving of user generated alphabetic signals includes receiving alphabetic signals representing alphabetic characters of either upper or lower case. 6. A computerized method as in claim 5: wherein said receiving of user generated alphabetic signals includes receiving in association with a given individual word signal a succession of one or more such signals each representing a characters which can be of either upper or lower case; and said method further including: storing a representation of the sequence of one or more characters represented by said succession of alphabetic signals, including the respective case of each such characters; responding to certain conditions by producing as an output for the given word signal the spelling associated with one of said vocabulary word selected as most probably corresponding to a word signal; and responding to certain other conditions by producing as an output for the given word signal said stored sequence of characters, including their respective case.