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A double-byte character set (DBCS) is a character encoding in which either all characters (including control characters) are encoded in two bytes, or merely every graphic character not representable by an accompanying single-byte character set is encoded in two bytes (Han characters would generally comprise most of these two-byte characters).
Typeface Family Spacing Weights/Styles Target script Included from Can be installed on Example image Aharoni [6]: Sans Serif: Proportional: Bold: Hebrew: XP, Vista
Under double-byte character set Windows environments, specifying this font may also cause applications to use non-System fonts when displaying texts. In Windows 2000 or later, changing script setting in some application's font dialogue (e.g. Notepad, WordPad) causes the font to look completely different, even under same font size. Similarly ...
JIS X 0208 is a 2-byte character set specified as a Japanese Industrial Standard, containing 6879 graphic characters suitable for writing text, place names, personal names, and so forth in the Japanese language.
The Unicode standard does not specify or create any font (), a collection of graphical shapes called glyphs, itself.Rather, it defines the abstract characters as a specific number (known as a code point) and also defines the required changes of shape depending on the context the glyph is used in (e.g., combining characters, precomposed characters and letter-diacritic combinations).
As these were typically encoded in a DBCS (double-byte character set), this also meant that their width on screen in a duospaced font was proportional to their byte length. Some terminals and editing programs could not deal with double-byte characters starting at odd columns, only even ones (some could not even put double-byte and single-byte ...
The lead bytes for the double-byte characters are "shifted" around the 64 halfwidth katakana characters in the single-byte range 0xA1 to 0xDF. The single-byte characters 0x 00 to 0x7F match the ASCII encoding, except for a yen sign (U+00A5) at 0x5C and an overline (U+203E) at 0x7E in place of the ASCII character set's backslash and tilde ...
Further, though JIS X 0201 is a single-byte encoding (and displayed at half-width) and JIS X 0208 is a double-byte encoding (and displayed at full-width), there is no connection between number of bytes and width (other than those corresponding in Shift JIS, as above) – for example, Unicode can be encoded with four bytes to display both full ...