The Traditional Chinese Solaris operating environment conforms to the CNS 11643 standard, updated in late 1992, and the Big5 character sets.
Big5 was defined by five major Taiwanese computer vendors (including the Institute of Information Industry) in May, 1984. Although Big5 is not the national standard, it is more widely used than the CNS 11634-1992
The total number of characters defined in Big5 is 13,461. It is part of CNS 11643-1992.
Traditional Chinese Solaris software provides code conversion between Chinese code conventions at three levels of support:
User commands support file transfers for existing files in different codes.
Library functions support application development for existing codes.
STREAMS modules support existing TTY devices using different codes.