2. A dictionary storage apparatus for use with a source of characters, the apparatus containing a list of correctly-spelled words for verifying the spelling order of character inputs, comprising: (a) word terminators in said list, one said terminator distinguishing each complete word therein, (b) input means for receiving character inputs in a first code format, (c) a first storage means for storing character information structured to sequentially check the spelling order of a first predetermined series of received character inputs, said character information in said first storage means being in said first code format and held in a plurality of bytes, one character per byte, and comprising a succession of character sequences having at least two characters therein, a first character selected from all characters of the alphabet and groups identified by a particular one of said first characters in combination with at least one other alphabetic character, at least some of said groups being less in number than the entire alphabet; (d) a second storage means extending from said first storage means and containing further character information structured to check the spelling order of a variable string of character inputs strung from said predetermined series to validate spelling of words, said further character information in said second storage means comprises a tree structure with a plurality of branches, each of said branches stemming from a discrete one of said sequences in said first storage means and at least one word remnant being associated with said discrete one sequence, said word remnant containing at least one character held in a second code format and being followed by said word terminator; (e) normally disabled means decoding said second code format into said first code format, said means for decoding being enabled at the end of each said discrete one sequence; (f) comparison means operable upon receipt of each said character input and effective to check agreement between the received one of said character inputs and ordinally corresponding ones of said character information as to words stored in said first storage means and in said second storage means, and (g) signal output means connected to said first and second storage means for generating a signal immediately in response to a received character input being out of spelling order as structured in said first and second storage means and determined by said comparison means.
2. A dictionary storage apparatus for use with a source of characters, the apparatus containing a list of correctly-spelled words for verifying the spelling order of character inputs, comprising: (a) word terminators in said list, one said terminator distinguishing each complete word therein, (b) input means for receiving character inputs in a first code format, (c) a first storage means for storing character information structured to sequentially check the spelling order of a first predetermined series of received character inputs, said character information in said first storage means being in said first code format and held in a plurality of bytes, one character per byte, and comprising a succession of character sequences having at least two characters therein, a first character selected from all characters of the alphabet and groups identified by a particular one of said first characters in combination with at least one other alphabetic character, at least some of said groups being less in number than the entire alphabet; (d) a second storage means extending from said first storage means and containing further character information structured to check the spelling order of a variable string of character inputs strung from said predetermined series to validate spelling of words, said further character information in said second storage means comprises a tree structure with a plurality of branches, each of said branches stemming from a discrete one of said sequences in said first storage means and at least one word remnant being associated with said discrete one sequence, said word remnant containing at least one character held in a second code format and being followed by said word terminator; (e) normally disabled means decoding said second code format into said first code format, said means for decoding being enabled at the end of each said discrete one sequence; (f) comparison means operable upon receipt of each said character input and effective to check agreement between the received one of said character inputs and ordinally corresponding ones of said character information as to words stored in said first storage means and in said second storage means, and (g) signal output means connected to said first and second storage means for generating a signal immediately in response to a received character input being out of spelling order as structured in said first and second storage means and determined by said comparison means. 5. The dictionary storage apparatus of claim 2, wherein said first code format requires less than all bits of said byte to distinguish said characters, at least one bit being in excess, and said decoding means for said second code format is enabled in response to a predetermined state of said excess one bit.