Character amnesia
It is difficult to establish exactly how many different Chinese characters are in use today; the new HSK, a widely used proficiency test for Standard Chinese as a second language, tests over 2,600 different characters, whilst in 1988 the People's Republic of China published the "List of Commonly Used Characters in Modern Chinese" which contains 7,000 different characters. In Japan, where a smaller set of characters are in general usage, the Japanese Ministry of Education prescribes the teaching of 2,136 kanji in primary and secondary school in a list called the jōyō kanji, meaning "regular-use Chinese characters".
Wenlin Software for learning Chinese
Unlike most electronic Chinese dictionaries, characters in Wenlin are defined in terms of the Character Description Language (CDL), an XML specification for describing complex glyphs in East Asian language, developed by the Wenlin Institute. This allows the program to define characters and character variants that are not defined in existing character sets such as Unicode. Version 4.3.2 of Wenlin covers more than 80,000 Chinese characters, including many rare characters.