Hope Chinese character system
Zero-one Chinese system
Bridge Chinese system
Eternal Chinese system, which also has Windows version, the last version is Eternal 2000 for Windows.
Han Zhen's Chinese system has been criticized by Eternal because it is highly similar to Eternal.
other
These are all softwares produced in1980s, and they all fall behind with the popularity of Windows. Coding: replace words with numbers.
Chinese internal code: for example, Big5
Chinese interchange code: for example, CCC, CNS 1 1643.
Word set: First, select a certain number of words, such as 3500 commonly used words or 8000 words in a dictionary.
Traditional Chinese characters (mainly used in Taiwan Province Province and Hongkong): Big5, exceeding13,000 characters.
Simplified Chinese characters (mainly used in Chinese mainland): GB, more than 6,000 characters.
A mixture of complexity and simplicity: GBK (developed from GB), with more than 20,000 words; Unicode2.0 (which can handle Japanese, Korean and other characters at the same time), with more than 20,000 characters.