#7 Numbers On Your phone And Calculator
We don't have to remind you how the numbers are placed on your phone or your calculator. It is not something that you can forget because you use these gadgets on daily basis.
But haven't you ever questioned anyone about the logic behind such a different arrangement of numbers? Well if you haven't till date, it's time you do!

#6 Numbers In A Hole
Now the question is, why exactly is the arrangement of the numbers on your phone and calculator is the way it is. Telephones were primarily invented in the US during the early 1900's.
At that time, we had the holes that carried the numbers in the phone. The keypad phones were first invented in 1960's.
Keep reading ahead to see the reason behind such an arrangement of numbers

#5 The Studies
Just so that you know, before the phones with numbers on buttons were released, studies were conducted on how to arrange the numbers, so as to reduce the chances of error while dialing.
If you have any idea about Journal of Psychology, it says that "People arrange numbers and letters in (the) order in which they normally read". Now this explains a lot.

#4 The Studies
Every single company that was making devices that had anything to do with numbers realized that there would be so many combinations of arrangements of numbers.
Checkout the image. These were the possible patterns that were considered to be on the final product.

#3 Bell's Lab
A study conducted in Bell's Lab suggested that people preferred a design that involved two rows of buttons horizontally placed. Such patterns were the quickest and produced the least amount of dialing errors.
This is why your phone is the way it is.

#2 Calculator
As far as a calculator is concerned, it was first made by Texas Instrument in the year 1967. They installed button that had the order 7-8-9 on the top row since this is how the machines that did the adding job in the past had their numbers.

#1 Both The Patterns
So now we have answered your questions about the pattern of numbers on your phone and calculator. People got used to both these patterns and these gadgets slowly became a necessity.