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The idea is to only use one hand (preferably the left one) and type the right-hand letters by holding a key which acts as a modifier key.The layout is mirrored, so the use of the muscle memory of the other hand is possible, which greatly reduces the amount of time needed to learn the layout, if the person previously used both hands to type.
A BAT keyboard is a one-handed chording keyboard consisting of a base, on which the hand rests, and seven keys. Through pressing combinations of keys, one can attain the same functions as a regular keyboard. The keyboard can be useful for those with a disability and also as a complement to the mouse, on which the other hand can remain.
A left-handed USB FrogPad. FrogPad is a small chorded keyboard about the size of a numeric keypad that can be used with one hand. It was produced by Frogpad Inc. The keyboard is optimized by character frequency. 85% of average keystrokes in English text can be typed without chording, and chords are limited to 2 fingers (opposable thumb and one finger).
In the main level, the keys X, J and Q were swapped cyclically. The X was placed on the left hand so that the frequently used key combinations Ctrl+X, Ctrl+C and Ctrl+V for the commands "Cut", "Copy" and "Paste" are on one hand. [7] The special character level 3 was completely reworked, as the corresponding shift keys are more accessible.
A keyboard with "two-key rollover" can reliably detect only any two keys used simultaneously; in other words, a user can hold down any key on the keyboard and press a second key, and be sure that the keypress is correctly detected by the computer. However, if the user has two keys depressed and attempts to strike a third key, the third keypress ...
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The angled split keyboard (sometimes referred to as a Klockenburg keyboard) is similar to a split keyboard, but the middle is tented up so that the index fingers are higher than the little fingers while typing. Key Ovation makes the Goldtouch ergonomic keyboard which is an adjustable angled split keyboard.
Each layout has the hand resting near the center of the keyboard, rather than on one side: the index finger rests on E and the pinky on D. Because the layouts require less hand movement than layouts designed for two hands, they can be more accessible to single-handed users. The layouts are also used by people with full use of two hands, who ...