国家标准《信息交换用汉字编码字符集·基本集》已于1981年5月发布实施。《基本集》规定了汉字信息交换用的基本图形字符及其二进制编码,收汉字6763个。它适用于一般汉字处理、汉字通信等系统之间的信息交换。随着我国汉字信息处理技术的发展,计算机的应用范围不断扩大,使用汉字字数较多的部门迫切需要在《基本集》的基础上继续制定信息交换用汉字编码字符集各辅助集的国家标准。计算机系统的研制厂商也提出同样要求,以便根据有关标准进一 The national standard “Information exchange with Chinese character encoding character set · basic set” was released in May 1981 implementation. Basic Set stipulates the basic graphic characters used for information exchange of Chinese characters and their binary codes, and receives 6763 Chinese characters. It applies to the general Chinese characters processing, communication between Chinese characters and other systems of information exchange. With the development of Chinese character information processing technology in our country, the application range of computer is expanding constantly. It is urgently necessary to use national departments with more number of Chinese characters to continue to make national standards for each auxiliary set of Chinese character encoding character set for information exchange on the basis of “basic set”. Computer system manufacturers also made the same request, in order to enter a standard based on