GB2312-80

The binary number encoding on 7445 graphic characters have been made by "GB2312-80", these graphic characters are:
6763 Chinese characters whose font is simplified character, are divided into two levels. The first level has 3755 Chinese characters, which accounts for about 99.9% of the cumulative usage frequentness of Chinese characters in modern documentation according to the ordering of phonetic alphabet; the second level has 3008 Chinese characters, according to the ordering of radicals and strokes. The Chinese characters of the first and second level account for about over 99.99% of the cumulative usage frequentness.
202 general symbols, in which including 1~20,(1) ~(20)，①～⑩，(-)~(+) etc.
22 numbers, in which, 0-9 totaled 10 numbers and I～Ⅻ totaled 12 numbers.
52 Latin letters, in which, A~Z totaled 26 majuscules and a~z totaled 26 minuscules.
169 Japanese kanas, in which, 83 hiraganas and 86 katakanas.
48 Greek letters, in which, Α～Ω totaled 24 majuscules and α～ω totaled 24 minuscules.
66 Russian letters, in which,А～Я totaled 33 majuscules and а～я totaled 33 minuscules.
26 Chinese phonetic symbols, including the letters with tone symbols and other symbols.
37 Chinese notional phonetic alphabets，ㄅ～ㄥ。