Stradn2_EducationandTraining_Braille+keyboards

Definition/Theory (Class Summary)
There are two types of braille keyboards. The most common type of braille keyboard is the chorded keyboard used on the Perkins brailler and on electronic braille notetakers. These keyboards do not have a separate key for each letter. There is one key for each dot of a braille cell. To type one letter, all of the keys that correspond to the dots in that letter are pressed at the same time. The brailler or notetaker advances to the next letter after the keys are released. A spacebar is located below the main keys.

News Articles
http://wiki.answers.com/Q/What_is_a_braille_keyboard_and_how_does_it_work#

Examples or Activities
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