MAI Basic Four Inc has introduced its BOSS/VX Dual Universe operating system for its low-end GPx Series 40 machines, which are built around the 80386. BOSS/VX supports both proprietary Basic Four applications and ones written for Unix System V, and incorporates a shared file system that enables users to access and interchange data between applications under the System V and Business Basic environments. An optional C Programming utility enables users to create, maintain, regenerate and debug code in C that will be portable to other System V environments. BOSS/VX conforms to the AT&T System V Interface Definition.