why is it that the numbers in the telephone are from top 1 to 9 and in the calculator it is from bot
Answer:
I think that since the calculator keypad predates the telephone keypad (remember that most telephones used to have rotary dials) that everything since then would have followed the calculator keypad convention. This is because both are meant to do different job I think the numbers on the phone are also meant to be recognized by blind people. That is why you can 'feel' a 'dot' on the number 5. So it becomes easy to know which number is which even in dark or for blind ppl.
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