The dot on calculator and cellphone's number 5????

@loxion (1551)
India
October 15, 2008 4:11pm CST
Why is it that a calculator or a cellphone the number five has a little dot on it?? have you noticed that, do you know the reason why is that dot always there? as for me i don't have a clue
1 person likes this
4 responses
@BubblyIan (751)
15 Oct 08
It is for people who have difficulty seeing clearly to help them feel their way to the right keys. Plus in the dark it will help you find the middle number.
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@Arkie69 (2156)
• United States
15 Oct 08
You're right. That little dot tell people that are blind that is the #5 key. They know what direction to go from there to get to the other numbers they want. You find that on most of the phones and calculators. There is a dot on the letter "F" and the letter "J" on computer keyboards. Your left index finger goes on the F key and your right one goes on the J key. On key boards it is for people that can see as well as those that can't.
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@loxion (1551)
• India
15 Oct 08
What about on the computer keyboard? will they still get the direction to f10?
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@btbill (1)
• United States
15 Oct 08
It was initially put there so that people who used a calculator a lot would know where the 5 was and thus all other keys on an adding machine/ That way they wuldn't have to look up from their work to position their fingers properly on the keys, and could input the numbers without looking up from the paper and thus increasing their efficiency.
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@loxion (1551)
• India
15 Oct 08
I think they should remove it, you can't use calculator to type.Thanks
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@ClarusVisum (2163)
• United States
15 Oct 08
It's for vision-impaired or blind people. Since almost every key is right next to the 5, if you know where the 5 is, you can find your way to any other key easily even if you're blind. For the same reason, there are little 'bumps' on the F and J keys on most computer keyboards. If you know how to touch-type, you'll know your fingers are in the right position by making sure your index fingers rest on those keys. I use that as a guide even though my vision is fine, just so I don't have to look at the keyboard while I type.
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@loxion (1551)
• India
15 Oct 08
Will a blind person get direction to the home button easly on a computer keyboard?
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@JoyfulOne (6242)
• United States
16 Oct 08
I always assumed that just like the raised dots on the letters f & j on our keyboards, it's so you can find it quickly without looking. I know my cpa uses her calculator kind of like that, she can strike out those numbers while looking at them (and not totally looking at the calculator...just like we type without looking at the letters, numbers & punctuation.) I think it's the same for a cellphone, with the raised dot it's easy to find the 5 and dial without really looking for the numbers.
@loxion (1551)
• India
16 Oct 08
If you were to type on your computer in a dark room will you still be able to find the pause button? Thanks for your reply