1. A character input device comprising a display unit having a display screen simultaneously displaying, when characters of hiragana 50-character Japanese language phonetic syllabary or alphanumeric characters are divided into a plurality of groups comprising columns and rows, characters of at least two columns spanning from at least two lines on a character input region provided on said display screen, a first group of two input keys and a second group of two input keys, and a display control unit displaying, in an identifiable manner, at least one selected character among the characters displayed on the character input region, said display control unit sequentially changing at least one character which is to be focused so as to be identifiable by scrolling at least two lines of characters in accordance with an operation of said first group of two input keys, said at least two lines of characters being displayed simultaneously; and changing the character, which is being focused so as to be identifiable, with another character belonging to the same row as that character in accordance with operation of said second group of two input keys.
1. A character input device comprising a display unit having a display screen simultaneously displaying, when characters of hiragana 50-character Japanese language phonetic syllabary or alphanumeric characters are divided into a plurality of groups comprising columns and rows, characters of at least two columns spanning from at least two lines on a character input region provided on said display screen, a first group of two input keys and a second group of two input keys, and a display control unit displaying, in an identifiable manner, at least one selected character among the characters displayed on the character input region, said display control unit sequentially changing at least one character which is to be focused so as to be identifiable by scrolling at least two lines of characters in accordance with an operation of said first group of two input keys, said at least two lines of characters being displayed simultaneously; and changing the character, which is being focused so as to be identifiable, with another character belonging to the same row as that character in accordance with operation of said second group of two input keys. 11. A character input device as set forth in claim 1 , wherein said second group of two input keys are comprised of numeral keys of 0 to 9 and said display control unit replaces the currently identifiably displayed character with a character belonging to the same group as said character and separated by exactly a number of positions corresponding to a selected numeral key when a numeral key is operated.