CSI-DOS used its own unique file system and only supported a color graphics video mode.
The system supported both hard and floppy drives as well as RAM disks in the computer's memory.
It also included software to work with the AY-3-8910 and AY-3-8912 music co-processors, and the Covox Speech Thing.
There are a number of games and demos designed specially for the system.
The system also included a Turbo Vision-like application programming interface (API) allowing simpler design of user applications, and a graphical file manager called X-Shell.