Reason:
At the beginning, the keys of the keyboard were installed in alphabetical order, that is, the alphabetical order in the upper left corner of the keyboard was "ABCDEF".
However, he soon found that when the typist typed a little faster, the long rod of two adjacent letters and the hammer might get stuck together, resulting in a "stuck key" failure.
To solve this problem, Shoals asked his brother-in-law, a mathematician and a school teacher for help. Mathematicians advised him to separate the most commonly used linked letters on the keyboard to avoid failure.
Shoals readily adopted his brother-in-law's solution and arranged the letters out of order, eventually forming a "QWERTY" layout.
Extended data
Common keyboard layout classification
1, QWERTY keyboard
1868, Christopher latham Shoals, an American compositor, obtained the model patent and operation right of the typewriter.
A few years later, he designed a general keyboard layout scheme, namely "QWERTY" keyboard.
2. "dvorak" keyboard
Because of the appearance of blind typing technology, the keystroke speed is enough to meet the needs of daily work. However, 60 years later (1934), a man named dvorak invented a new arrangement method, which enabled his left and right hands to alternately type more words. This keyboard can shorten the training period by 1/2 times and increase the average speed by 35%.
3. "malt" keyboard
More reasonable and efficient than Dvorak keyboard is the malt keyboard invented by Lillian malt.
The malt keyboard has changed the original rows of buttons, making the thumb easier to use and the keys such as backspace, which were far away from the center of the keyboard, easier to reach.
But the malt keyboard needs special hardware to be installed on the computer, so it has not been widely used.
Baidu encyclopedia-keyboard layout