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== Non-standard layout and special-use types ==
===
Many keyboards have been designed for one-handed operation.
The first one, a chorded keyboard, was invented by [[Douglas Engelbart]].
Other types of one-handed keyboards include the [[FrogPad]], the [[Half-keyboard]],<ref>
Bill Machrone.
[https://books.google.com/books?id=2ndPnAos2-8C&pg=PA49 "The Sound of One Hand Typing"].
p. 49.
PC Magazine.
2005.
</ref>
and [[Dvorak keyboard layout#One-handed versions | one-handed Dvorak keyboard layouts]] designed for [[one hand typing]].
==== Chorded ====
{{Main|Chorded keyboard}}
While other keyboards generally associate one action with each key, chorded keyboards associate actions with combinations of key presses. Since there are many combinations available, chorded keyboards can effectively produce more actions on a board with fewer keys. Court reporters' [[stenotype]] machines use chorded keyboards to enable them to enter text much faster by typing a syllable with each stroke instead of one letter at a time. The fastest typists (as of 2007) use a stenograph, a kind of chorded keyboard used by most court reporters and closed-caption reporters. Some chorded keyboards are also made for use in situations where fewer keys are preferable, such as on devices that can be used with only one hand, and on small mobile devices that don't have room for larger keyboards. Chorded keyboards are less desirable in many cases because it usually takes practice and memorization of the combinations to become proficient.
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