Also, Costco uses AS/400. Applications that are pure function over form are amazing

I'm not positive whether Target's system from ~15 years ago was a TUI, but a friend worked there in college. He mentioned the process for tax exempt purchases was a bit challenging/not the most common. There were some frequent shoppers who had heard the assistance from the manager enough times, they could walk an employee through what buttons to press to get it setup correctly.

	▲	sentientslug 14 hours ago \| parent [-]
		Was not a TUI, but was totally controllable from the keyboard. There was no mouse or touch screen, you could get pretty fast at it. You are also correct about the tax exempt thing, the customers who used it often knew what to ask for. The new registers now have a completely different UI with a touch screen. Seems like a step backwards.