What is "turbodos"

TurboDOS is a multi user CP/M like operating system for the Z80 and 8086 CPU's developed by Software 2000 Inc.

It was released around 1982 for S100 bus based systems such as the NorthStar Horizon and the Commercial Systems line of the multiprocessor systems including the CSI-50, CSI-75, SCI-100 and CSI-150.

The multiprocessor nature of TurboDOS is its most unusual feature. Unlike other operating systems of its time where networking of processors was either an afterthought, or which only support a file transfer protocol, TurboDOS was designed from the ground up as a multiprocessor operating system.

It is modular in construction, with the operating system generation based on a relocating, linking, loader program. This makes the incorporation of different hardware driver modules quite easy, particularly for bus-oriented machines, such as the IEEE-696 (S-100) bus which was commonly used for TurboDOS systems.