QWERTY+keyboard

=**QWERTY keyboard**=

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What is it?
It is a standard typewriter keyboard for English that most people use commonly through the whole world. It is called “QWERTY” keyboard (and pronounced as / kwûr**'**tē /) by following the first six letters on the top alphabetic row: Q, W, E, R, T and Y. Sometimes, it is called the Sholes keyboard after its inventor.

Some people say the design is fossil and not usefulness. However, even though there are alternative keyboard, people are still prefer to use the ‘QWERTY’ keyboard.

History of QWERTY
It was introduced by Christopher L. Sholes in 1868. He was a newspaper editor, poet and also inventor. Before he invented the QWERTY layout, the typewriter’s arrangement was alphabetical order. A problem of the past typewriter was that it couldn’t afford the fast speed of skilled typist. As the operator types fast, the most used letters’ bar were frequently getting to be entangled. To solve the problem, he designed the new layout, ‘QWERTY’, by splitting the frequently used letters out. Later, the problem of speed was fixed; however, people were already familiar with the layout so that the ‘QWERTY’ layout could be alive until now. Not only that, but the arrangement is also uniform so that people would use their both hands equally. While you are pressing a letter, you can move the finger of other hands to the next position and so on.

As technology grows, the ‘QWERTY’ keyboard has been up-graded to various forms. For other languages, there are some changes of arrangement like French’s ‘AZERTY’, German’s ‘QWERTZ’. Also, the physical look has been changed for the other uses. There are portable ‘QWERTY’ keyboard: it is light, foldable so people can use them with PDA or other electronic machines. Some cellular phone takes this layout because many people prefer to use it for sending text message.

Advantages of QWERTY
//**User Experience Goals**//


 * Helpful** – It has been used for over 100 years through the world. It helps people to express what they want to say on the network easier way. If you know this arrangement, you can use mostly any computers in the world. So, it is very essential skill to use computer.


 * Satisfying** – Even though ANSI (American National Standards Institutes) chooses the Dvorak keyboard as an alternate standard keyboard arrangement, which is found out faster than ‘QWERTY’, people are still using ‘QWERTY’ keyboard usually. Why? Because it fulfills their expectation. What common people want is not professionally fast speed: it is the normal, but standard and available to everyone.

Disadvantage of QWERTY
//**Usability Goals**//

On the other hand, there is an alternative standard keyboard, ‘Dvorak’ keyboard. The arrangement is very different with QWERTY even the numbers. With the ‘Dvorak’ keyboard, Barbara Blackburn was recorded as the fastest typist in the world on The Guinness Book of World Record at 2005. (150 words per minute for 50 min.)
 * Efficiency** – The ‘QWERTY’ might solve the problem of past. However, there are some left works, too. For examples, “tr”, “ed”, and “er” are frequently used letter combinations, and they are not only near by, but also in one hand.

//**User Experience Goals**//

The ‘QWERTY’ keyboard is just so commonly used. So it makes people to resist the change, which could be better or not. People are not even try to change and the afraid would cause stops of development.
 * Motivating & Support creativity**



The strong alternate - 'Dvorak' keyboard
It was designed by August Dvorak and introduced as first completed version in 1932. He thought that the QWERTY keyboard makes the speed of typing slow. So he studied the frequency of letters and physiology of hand to design more efficient arrangement of keyboard. It has the most frequently used letters in easier positions (middle row) and also designed for effective uses of both hands. Also the arrangement could change to fit for both ‘right-handed’ people and ‘left-handed’ people. After it was selected as alternate standard keyboard of QWERTY, the users of it have been keep growing.

Reference
[|http://www.csse.monash.edu.au/~cema/courses/CSE3325/images/lect5/QWERTY.JPG] http://www.smugmug.com/photos/74718791-S.jpg http://www.learn2type.com/images/Fingers/KeyFingers-PC-Small.jpg
 * Picture Sources
 * http://www.future-fab.com/assets/images/ff18_wp_intro_greathouse_fig1.gif**

http://en.wikipedia.org/wiki/Dvorak_Simplified_Keyboard http://www.maxmon.com/1874ad.htm http://computing-dictionary.thefreedictionary.com/Qwerty+keyboard+layout**
 * Content Sources
 * http://en.wikipedia.org/wiki/QWERTY