sexta-feira, 25 de novembro de 2011


*** QUERTY ***

QWERTY keyboard layout is currently used in most computers and typewriters. The name comes from the first 6 letters "QWERTY" of the first line.

This arrangement of keys was patented by Christopher Sholes in 1868 and sold to Remington in 1873, when it was first seen on typewriters.

In this layout, the  letters used more frequently in the English language were separated into opposite halves of the keyboard in an attempt to prevent the locking of the mechanism of the nineteenth century typewriters. By alternating the use of keys, the arrangement avoided the key lock on old typewriters: one hand while hitting a key, the other finds the next key.

Other standards have been proposed, such as Dvorak, but never reached the same popularity of QWERTY.

The QWERTY layout is adopted with changes in some languages ​​forming QWERTZ and AZERTY keyboards, where the letters Y and Z are exchanged. Symbols, diacritics and accented characters are in different positions in international variations of QWERTY.

*** QWERTZ ***

The QWERTZ keyboard normally used in German-speaking regions. The name comes from the first six letters at the top of the keyboard: Q, W, E, R, T and Z.

Differs from the QWERTY exchanging Y and Z together,  because the letter Z is used more than the Y in German as well as T and Z often appear close to each other in German. Keyboard is adapted to include local characters such as ö, ä, and ü.

There are models based on the German QWERTZ, such as Italian, French-speaking parts of Switzerland, and in most countries of Eastern and Central Europe that use the Latin alphabet, with the exception of Estonia and Lithuania.

A QWERTZ keyboard layout is also known for kezboard. This nickname is given because of the way the word "keyboard" is typed on a QWERTY,  in the same sequence will generate the word "kezboard" on a QWERTZ keyboard.

*** AZERTY ***

The AZERTY keyboard layout used in France, Belgium and some surrounding countries, and others especially the ones using French language. The AZERTY was also used in typewriters in Portugal since 1975 (wih the end of the Salazar dictatorship)  until the early '90s.

The French version meets the standards for the French language, but it is impossible to produce characters É, Ç, or quotation marks ("" and <>). Also
has many other symbols changed from the normal positions and others that are rarely used in normal conversation.

The Belgian AZERTY is similar to the French AZERTY but some adjustments were made in 80 years. All letters remain in the same place than in the French keyboard, but some signs (?!, @, -, _, +, =, §) are in different locations.

*** HCESAR ***

HCESAR is a obsolete keyboard layout. It was created by decree in July 21 1937 by the then Portuguese Prime Minister (dictator) António de Oliveira Salazar.

Among the special features of this keyboard,  highlight the dual function of the same key to represent the digit 0 and the uppercase letter O, as well as the digit 1 and the lowercase L. There was no  Cardinal and the sign
could be obtained by writing the equal sign and overlaying it with a bar. The asterisk was achieved at the expense of a lowercase X superimposed over the + signal.

*** DVORAK ***

The Dvorak Simplified Keyboard  was developed by designers August Dvorak and William Dealey in 1920 and 1930 as an alternative to the more common QWERTY.

The Dvorak Simplified Keyboard is recommended by ergonomists BECAUSE a person typing in English Dvorak makes 20 times less
effort than typing on a QWERTY keyboard.

The Dvorak keyboard was never widely adopted. Both manufacturers and users were resistant to the layout radically different from the traditional QWERTY, which requires the relearning of typing.

Were developed different adaptations of Dvorak into other languages​​, such as iDvorak (Italian), Dvorak-fr (French), the Native-BR (Brazil) and others.

There are versions of Dvorak for one hand using. These layouts, one for right hand and other to the left, regroup the letters in one of the most important halves of the keyboard, making it easier to use for people who for one reason or another, can not make use of both hands.

4 comentários:

  1. If I was a dictator, I would've made the first line my name, in your example SALZR. :)

  2. That's a splendid idea! One of this day I'll re-arrange a keyboard just for fun! The fist would be FERN :)

  3. Please correct me if this is wrong, but I think HCESAR is the sole documented case of a keyboard layout imposed by decree...

  4. Agora em português, mas faz muito mais sentido... Deus, pátria e família... Até o teclado da máquina de escrever tinha que ser nacional... Já para não falar das Messa!