JIS (Japanese)

The first of the 94x94 codes was the Japanese standard JIS C 6226-1978 (Old-JIS). This was re-arranged to accommodate the 1981 Jouyou Kanji list (all of which are in level 1), resulting in JIS C 6226-1983 (New-JIS, renamed JIS X0208-1983 in 1987). Two kanji have since been added to level 2, giving the current JIS X0208-1990:

01-02
punctuation, symbols
03
ISO 646 (alphanumerics only)
04
hiragana
05
katakana
06
Greek
07
Cyrillic
08
line drawing
16-47
kanji level 1 (2965, ordered by on-yomi)
48-83
kanji level 2 (3384, ordered by Kangxi radical, then stroke)
84
miscellaneous kanji (6)

[This seems an appropriate place to mention JIS X0201-1976 (called JIS C 6220 until 1987), an 8-bit code. Its left half (JIS-Roman) is the Japanese national variant of ISO 646 and differs from US-ASCII only in having a yen symbol in place of the backslash (5C) and an overline in place of the tilde (7E). Its right half (A1-DF) comprises Japanese punctuation and katakana.]

An extension is defined by JIS X0212-1990:

02
more punctuation, symbols
06
accented Greek
07
non-Russian Cyrillic
09
extended Latin
10
uppercase accented Latin
11
lowercase accented Latin
16-77
kanji level 3 (5801, ordered by Kangxi radical, then stroke)

The non-kanji parts of JIS X0208-1990 and JIS X0212-1990 occupy disjoint code ranges.


Part of Notes on CJK Character Codes and Encodings.