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, and the 64-bit version was based on Tru64 UNIX. A Linux distribution named COSIX Linux was developed by CS&S and released in 1999, which had no technical relationship to COSIX.
- 刘启原 (January 1995). "国产操作系统COSIX". 软件世界.
- "China National Computer Software & Technology Service Corporation Chooses Compaq's Digital UNIX Technology as Basis for China's 64-Bit UNIX". INTERACTIVE BUSINESS NETWORK RESOURCE LIBRARY. 1998-09-10. Retrieved 2011-09-26.