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Why is the keyboard layout Q-W-E-R-T-Y and not simply A-B-C-D-F?

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Why is the keyboard layout Q-W-E-R-T-Y and not simply A-B-C-D-F?





Why is the keyboard layout Q-W-E-R-T-Y and not simply A-B-C-D-F? Why were computer keyboards designed in the current format not in a alphabetical order. Is there any specific reason or it's just some random convention we are following?


It hasn’t been done randomly or just for fun, it has a very distinct and purposeful reason behind it.

The current format of the keyboard was devised long back in 1870’s by a gentleman named Christopher Sholes for the then typewriter.


Though, it definitely was not the first format to come up, it didn’t take much time to switch to this one.


Starting with lexicographic order i.e. A-B-C-D-E-F, after various trials and errors and taking hundreds of cases, Christopher Sholes gradually reached the Q-W-E-R-T-Y. It was really well received (evident from the fact that we still use it).


When the typewriter was invented, it used a metal bar to hold the character alphabets and the other end of the bar was attached to a linkage carrying a carriage with the coated ink.


When a key was struck, it would emboss its character on the paper placed beneath the carriage. However, when an operator learned to type at a great speed, a certain flaw was noticed.


When two letters were struck in quick succession, the bars of the typewriter would entangle and get jammed.


Christopher Sholes found a way out. He proposed that the letters of frequently used letter pairs should be in different rows.
For example, ‘C-H’, ‘S-T’, ’T-H’, ‘W-H’ and more.


He also formulated that to speed up the typing process, there has to be a regular alternation between two hands. So observing thousands of words, he placed the letters in way that most words would make use of both hands.


He also observed that almost every word in the dictionary carries a vowel.


According to him, the most frequently used vowel was ‘A’ and the most frequently used letter (non-vowel) was ‘S’. So he placed ‘A’ and ‘S’ together and chose to keep less common letters like ‘Q’, ‘W’, ‘Z’, ‘X’, ‘C’ around these.


This was complemented by placing fairly common letters like ‘M’, ‘N’, ‘L’, ‘K’, ‘O’, ‘P’ at right extremes to create a perfect alternation between both the hands.


All these factors tested with thousands of trials gave us the format that we still use and perhaps would be using till eternity.


http://www.siasat.pk/forum/showthread.php?369166-Why-is-the-keyboard-layout-Q-W-E-R-T-Y-and-not-simply-A-B-C-D-F

http://www.quora.com/Why-is-the-keyboard-layout-Q-W-E-R-T-Y-and-not-simply-A-B-C-D-E-F

http://www.quora.com/Why-do-keyboards-have-a-QWERTY-layout
 
Wow! Wow! Wow! That the arrangement of the letters have stood the test of time goes to prove the greatness of the analytical mind and efficiency in execution of Christopher Sholes!

 
Qwerty keyboard has this built in deficiency - load and stress on fingers are not distributed as per the finger strength; weakest little finger has the max load/frequency. Other keyboard layouts to rectify this were suggested but did not succeed mainly because of installed capacity of typewriters, resistance to change and machines not made with new layout.

In the early days of computers, dvorak layout, supposed to reduce finger motion, minimise errors and maximise typing speed, made some flutter, because mapping keys was possible in keyboards. I learnt it for fun. This layout too did not survive.

*****

The Dvorak Simplified Keyboard is a keyboard layout patented in 1936 by Dr.August Dvorak and his brother-in-law, Dr. William Dealey. Over the years several slight variations were designed by the team led by Dvorak or by ANSI. These variations have been collectively or individually also called the Simplified Keyboard or American Simplified Keyboard but they all have come to be commonly known as the Dvorak keyboard or Dvorak layout. Dvorak proponents claim the Dvorak layout uses less finger motion and reduces errors compared to the standard QWERTY keyboard. This reduction in finger distance traveled is claimed to permit faster rates of typing while reducing repetitive strain injuries, though this has been called into question and their criticism has in turn also been called into question.

Although the Dvorak Simplified Keyboard (DSK) has failed to replace the QWERTY keyboard, most major modern operating systems (such as Windows, OS X, Linux, Android, Chrome OS, iOS (via a third-party keyboard), and BSD) allow a user to switch to the Dvorak layout. Currently BlackBerry 10 and Windows Phone do not support a system-wide, touchscreen, Dvorak keyboard.
https://en.wikipedia.org/wiki/Dvorak_Simplified_Keyboard
 
dvorak2.gif


Dvorak Simplified Keyboard - Appears really crazy! Because A is hit by little finger; O, W are hit with ring fingers;

E, M are hit with middle fingers; B, F, G, H, U,Y are hit by index fingers - though there are changes in left and right hands!

NOT for me, since I type without seeing the keyboard! :)
 
Time and motion study was the first attempt to quantify manufacturing management and the first study was how to dig with Max efficiency with the right sized shovel, and with min swing. Dvorak keyboard has frequently used letters in the middle row and the fingers can stay in a straight line. That was the ligic.

No wonder it did succeed as not many want to be straight these days!
 
Dear Sarang Sir,

Practice makes perfect, right? If THIS keyboard was the one I practiced as a college student, I would have said double OK to this!

Same with music. When I hear Carnatic songs, some tunes which differ from what my Guruji taught me, sound weird! :D
 
Swinging fingers might be better than straight fingers because they may tend to go numb! :D

BTW, my son showed me his keyboard, which has a nice curved shape.

It was so easy to type in that, as the fingers felt very comfortable! :cool:

Here is the image, from the web:

trulyergo.jpg
 
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