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This character set is of historical significance since it is the first widely used character set including characters whose Universal Character Set character numbers (or code points) exceed the value 65,535. This number is the largest number that can be represented in two bytes of computer memory, which means GB18030 includes characters that cannot be represented in any two-byte fixed width (or double byte) character set. Many computer operating systems, such as all versions of Microsoft Windows prior to Windows 2000, use UCS-2 which is a double byte character set. Newer versions of Windows use UTF-16, in which characters are represented by either two or four bytes. When transmitted in E-mail any non- ASCII characters are encoded in MIMEMultipurpose Internet Mail Extensions MIME is an Internet Standard for the format of e-mail. Virtually all Internet e-mail is transmitted via SMTP in MIME format. Internet e-mail is so closely associated with the SMTP and MIME standards that it is sometim format.

1 See also

• CJKCJK can also stand for Centre Jeunes Kamenge''. CJK is a collective term for Chinese, Japanese, and Korean, which comprise the largest of East Asian languages. The term is used in the field of software and communications internationalization. The term CJK
• Chinese character encodingChinese character encoding is needed for the display of Chinese characters in computers, used in the Chinese, Japanese, and Korean languages (collectively CJK). The following are common Chinese encoding systems: Guobiao is used in Mainland China. All Guob

2 References

• IANA Charset Registration for GB18030
• English language summary of GB 18030-2000