| COSIX | |
|---|---|
| Developer | China National Computer Software & Technology Service Corporation (CS&S), Compaq |
| OS family | Unix (Tru64) |
| Initial release | 1989 |
COSIX is a Chinese UNIX operating system developed since 1989 by China National Computer Software & Technology Service Corporation (CS&S). A jointly developed 64-bit version with Compaq was released in 1999.
An early version of the COSIX kernel was developed based on UNIX System V, [1] and the 64-bit version was based on Tru64 UNIX. [2] A Linux distribution named COSIX Linux was developed by CS&S and released in 1999, which had no technical relationship to COSIX.