Vasellating. TurboVision was awesome, but it was pushing the boundary of TUI, which in my mind was great for moving hard copy to computer entered use case. To wit, hard copy on your right side, you transfer data to app without looking at screen, but just looking at hard copy, remembering when/where to hit return key, maybe tab for prior field, stuff like that.

But hey, if the screen is drawn 24 x 80 with extended ascii, it's TUI. And man, loved the "absolute" keyword in turbo pascal. Instant screen writes when writing to a 2 dimensional array.