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Keyboard Modifications


There are a number of ways in which the operation of the keyboard can be altered to suit individual preferences and needs. These usually take the form of adjustments to the key response, which is done by modifying the part of the computer system that controls the keyboard. This software keeps a check on the keyboard, registering each time a key is pressed. In order to accommodate different users and their preferences the software controlling the keyboard can be set to ignore selected types of key-presses. These settings differ in name for each commonly used system, PC, and Apple Macintosh.

It will be necessary to experiment with the various settings to suit each person, and if the computer has more than one user, find out how to store and recover each persons setting quickly by creating profiles. Your LEA or school technician can help with this.

Common problems:
Key repeats "aaaaaaa" caused by holding a key down for a period of time. This can be cured by increasing the time delay before the letter is repeated. The speed at which the letters are repeated can also be chosen.

Key repeats can also be caused by un-intentional presses, perhaps caused by a hand tremor. This ensures that a second press on the same key will be ignored until a set time has elapsed.

Miss-hits caused by difficulties in targeting keys accurately can be reduced by introducing a delay before a key-press is accepted. As a result a key-press will only be accepted if the key is deliberately held down for a pre-set period of time.

Remember that difficulties can also be caused by poor seating and positioning and by the users' being unsure of what they are doing.



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