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Utility for the
Visually Impaired |
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Unlike
people with normal sight, people who are visually impaired do not
have the option of choosing between the hunt-and-peck and the touch
keyboarding typing styles. The visually impaired person either keys
by touch or not at all.
The TACTUS keyboard has been found very useful for computer users
who are visually impaired. This is due to the ridges on the keys.
The ridges provide twenty feedback points in lieu of the two feedback
points on the letters F and J of the standard QWERTY keyboard. The
ridges are very easy to feel and are organised in a logical way, that
is, into two geometrical figures that can be easily understood and
remembered. Moreover, relocating the hand to the home row is made
much simpler because of the ridges.
Touch keyboarding teachers, working with students who are visually
impaired, report that the TACTUS Keyboard greatly simplifies the task
of teaching these people the location of the keys.
The TACTUS Keyboard has been tested by several organisations for the
visually impaired and found to be very effective in training visually
impaired users to touch-type. |
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