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Essay

Computing Options for Physically Challenged Users

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Issue:

Book Reports

 

Written by:

Anonymous

 

Date added:

November 3, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 387

 

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5709 times

 

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Essay content:

A keyguard is a metal or plastic plate placed over the keyboard that allows users to rest their hands on the keyboard without accidentally pressing any keys. Small trackballs that the user controls with a thumb or one finger can be attached to a table, mounted to a wheelchair, or held in the user’s hand...
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Another option for people with limited hand movement is a head-mounted pointer. To simulate the functions of a mouse button, a user works with a foot pedal, hand pad, or pneumatic instrument controlled by puffs of air. Hearing-impaired users can instruct programs to display words instead of sounds. With many Windows operating systems, users also can set options to make programs easier to use...
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