Different keys organization for Mobile and Calculator

Keys Calculator

Calculator Keys

Keys Mobile

Mobile Keys

I am always wondering why do we have two different ways of Keys Organization for Mobiles and Calculators.

If you have any thoughts, feel free to share in comments.


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  1. Make
    August 28th, 2009 at 22:26 | #1

    Mobile has ‘abc..’; which may be the reason to have ascending.

  2. August 29th, 2009 at 07:05 | #2

    @Make May be. I haven’t noticed that before. Nice thought.

  3. Karl
    August 29th, 2009 at 17:49 | #3

    There is no reason behind this. Just like that these are designed. Don’t try to explain these :)

  4. September 3rd, 2009 at 06:02 | #4

    Vijay,
    A calculator keyboard is set up to be used on a desktop, and designed for accounting and speedy entry of numbers, similar to a typewriter. A phone keyboard is not. I’m sure studies were made and test performed prior to designing the calculator to see which design was most functional.
    Teri

  5. September 3rd, 2009 at 07:06 | #5

    @Karl May be no reasons; but could not control the curiosity.

    @Teri Piper You are right. Studies would have made to design this. Still exploring the reasons :)

  6. anand
    September 3rd, 2009 at 18:30 | #6

    Hi da VJ,
    Which one invented first. So that we can know which design came on innovation and which design came on based on usability.

  7. September 3rd, 2009 at 21:17 | #7

    @anand Obviously Calculator came first before teh mobile phones.

    So according to you, for calculator keys there is no reason exists; but for Mobile keys, usablity is the reason.

    Interesting!!!

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