difference double and single byte font
Glossary. 1  Full-width character: In a double-byte character set, a character that is represented by 2 bytes and typically has a half-width variant. 2  Half-width character: In a double-byte character set, a character that is represented by 1 byte and typically has a full-width variant. 3  Hiragana: The Japanese cursive script.
Because the ANSI standard uses only a single byte to represent each character, it is limited to a maximum of 256 character and punctuation codes. Although this is adequate for English, it doesn't fully support many other languages.