Re: .. never used .. ?
When I was at Data General in the 80s, I modified their D200 terminal firmware to handle and display the overstrike characters required by APL. To my knowledge, this was the first non-storage tube display to be able to do that.
I think they might have sold 10 of them. APL was never more than a niche product for DG.
Biting the hand that feeds IT
