Unicode Tutorials - Herong's Tutorial Examples - Version 5.21, by Dr. Herong Yang
History of GB Character Sets
This section provides a quick introduction of GB character sets: GB2312-1980, GB1300.1 and GB18030-2000.
GB: An abbreviation of Guojia Biaozhun, or Guo Biao, meaning "national standard" in Chinese.
GB2312-1980: A coded character set and encoding scheme established by the government of People's Republic of China (PRC) in 1980. GB2312-1980 contains 7445 characters, including 6763 Hanzi and 682 non-Hanzi characters.
GB1300.1: A coded character set and encoding scheme established by the government of PRC in 1993 for Hanzi characters. GB1300.1 is designed to be compatible with Unicode 2.1 by maintaining all characters in GB2312-1980 untouched, and positioning all additional characters defined in the Unified Han portion of Unicode 2.1 around the GB2312-1980 character set. GB1300.1 is also called Guojia Biaozhun Kuozhan (GBK). It defines 23940 code points containing 21886 characters.
GB18030-2000: A coded character set and encoding scheme established by PRC as an update of GB1300.1 to be compatible with Unicode 3.0. GB18030-2000 has 1.6 million valid code points, 0.5 million more than Unicode 3.0.
The government of PRC has required, since September 1, 2001, that all operating systems on non-handheld computers sold in PRC must comply with the GB18030-2000 standard.
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