Turbo Vision was very fun to use and I made a good bit of money contracting on small projects in grad school in the early 90s using it. It made writing text mode guis a breeze. Borland's later Object Windows Library (OWL) was, in my opinion, much clunkier but it was done in C++ compared to Turbo Vision's Pascal.
Probably the most interesting app I did was a small quality control/stats app for this book: "Quality Control 4th Edition" (https://www.amazon.com/Quality-Control-Dale-H-Besterfield/dp...). All the data entry used Turbo Vison and all the graphs and charts used BGI (Borland Graphics Interface). It was meant for student use but I found out later it was used by Jim Beam on their whiskey distillery production line.
Probably the most interesting app I did was a small quality control/stats app for this book: "Quality Control 4th Edition" (https://www.amazon.com/Quality-Control-Dale-H-Besterfield/dp...). All the data entry used Turbo Vison and all the graphs and charts used BGI (Borland Graphics Interface). It was meant for student use but I found out later it was used by Jim Beam on their whiskey distillery production line.