Restaurant Computer Systems

I spotted this display of Luxembourg's Restaurant Computer Systems.

Starting in 1982 and 1984 with a Commodore computer, moving to an Amiga and Kaypro in 1986, then to a touchscreen in 2003 and finally a tablet in 2023. Which one do you think is most usable? Personally I would go for the 2003 touchscreen, but I can understand the convenience of a tablet which the staff can carry around. But is that really an improvement on a pen and paper? 🤔