why the letters are laid like that on a keyboard,is there any story behind that?

Answer 1

Yes.

Early typewriters had a problem that the hammers would interfere with each other (and get locked together) if the typist typed too fast.

The qwerty keyboard was laid out to slow down the typist (no kidding)

Answer 2

The qwerty keyboard was developed in a mechanical typewriter so that letters often typed together were not near each other on the keyboard, and consequently on the mechanical parts, so that they would not jam. That mechanical need was balanced with placing keys in ease of use for common letters.

The Dvorak keyboard is much better, but not in wide use.

Answer 3

Dogsafire has it correct. The keyboard was layed out based on the frequency of use of letter in the English Language. Many of the most frequently used letters (A, S, E, T) were placed on the left side, since the left hand was usually slower.

Answer 4

In 1872, Remington produced the first mechanical typewriter, patented by C. Latham Sholes. Soon typists were going so fast that they were able to jam the keys which flew up to hit the typewriter ribbon. In the late 1870's: the "improved" Qwerty layout was designed to slow down typing, so those pesky keys would not jam anymore. Here is the speed trap we are stuck with today, 130 years later.

Answer 5

they just found out how to arrange the keyboard in the most effective way.

Answer 6

QWERTYUIOP[]\
ASDFGHJKL;'
ZXCVBNM,./

because it's easy to memorize rather than having it look like:

ABCDEFGHIJK[]\
LMNOPQRSTU;'
VWXYZ,./

The way the fingers would move if it were alphabetical would only create even more issues. Fingers would get tangled, etc. It's too confusing.

The QWERTY keyboard works just as good. =)