For collectors of early artificial intelligence and expert‑system technology, this is a rare, original copy of VP‑Expert, one of the most influential rule‑based expert‑system shells of the late 1980s and early 1990s. Produced during the golden era of symbolic AI, VP‑Expert allowed developers to build forward‑chaining and backward‑chaining knowledge bases long before modern machine learning existed.

This copy comes from a well‑preserved vintage software collection and has been stored in a clean, climate‑controlled environment. Perfect for collectors, archivists, AI historians, and anyone documenting the evolution of expert systems. This listing is for the software not just a book. 5.25 Disk. SEE PHOTOS