separate design groups who never spoke to each other. You forget that the telephone keypad grew out of the dial phone and when they assigned letters to that they started with the number 2 as it ran one through to zero in a right to left pattern as that was easier for people to use. Thus the phone pads run alphabetically while the calculator and computer keypads were set up with the most common used numbers at the bottom where they'd be easier to get at.
What is interesting is how hard it is to get a keyboard without a number pad now despite most people rarely using the number pad that much outside of an accounting area.
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