[raghava]

Many of the older core banking systems were keyboard only, because it made the tellers work a lot faster.

I know because I had been on some of those unfortunate teams that transitioned to GUI that required to use the mouse and the teller's productivity decreased terribly - something that took 30 seconds ended up taking almost 4 minutes, and seeing this, the banks refused to transition to the "new and advanced" versions, until the old charmode UI was slapped on it again.