High Quality Content by WIKIPEDIA articles! In CJK computing, graphic characters are traditionally classed into fullwidth and halfwidth (in Taiwan and Hong Kong characters. With fixed-width fonts, a halfwidth character occupies half the width of a fullwidth character, hence the name. In the days of computer terminals and text mode computing, characters were normally laid out in a grid, often 80 columns by 24 or 25 lines. Each character was displayed as a small dot matrix, often about 8 pixels wide, and an SBCS (single byte character set) was generally used to encode characters of western languages. For a number of practical and aesthetic reasons, Han characters would need to be twice as wide as these fixed-width SBCS characters. These "fullwidth characters" were typically encoded in a DBCS (double byte character set), although less common systems used other variable-width character sets that used more bytes per character. Halfwidth and Fullwidth Forms is the name of Unicode block U+FF00–FFEF,

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