Expert I/O SDK
Expert I/O SDK 1.2 is free to download from our software library. This software was originally developed by Dajac Inc. The program is sometimes distributed under different names, such as "Expert IO SDK". The most popular version among Expert I/O SDK users is 1.2. The software is included in System Utilities.
From the developer:
The Expert I/O 1000 is uniquely suited for all your automation needs. Requiring a simple USB connection to a computer, it will allow you to automate research experiments, industrial electronics/machinery, home, hobbies and more. It is also an excellent tool to teach students automation control principles and techniques. Easy device connection using detachable screw terminals.
You may want to check out more software, such as Fusion-io ioMemory VSL, io.js or Textbox io, which might be related to Expert I/O SDK.