Hearing Impairment: People with hearing or speaking impairments have been using sign language to communicate with others. Technology developed and people with listening impairment were able to take help of assistive listening systems and devices to overcome their problem. Later on computer-assisted real-time transcription (CART) further helped these people. Certain sounds and beeps that computer make becomes inaudible for the people suffering from hearing impairment. Appearance of visual warning on the screen when computer make any beep or sound works as a remedy for those people who cannot hear properly. Another way in which technology is playing a great part in solving this problem is the flashing of light for example flashing of light may act as an indicator that a command has completed. "The latest breakthrough in technology for the deaf is telecomputing. People who are deaf can use an ordinary telephone by using a voice synthesizer that speaks their typed-in words. The person at the other end uses the telephone's buttons to spell out words that then appear on the deaf user's screen. In addition to being much faster than the old style telephone devices (TDD's) for the deaf, telecomputing is more advantageous because very few hearing individuals have teletype machines, while the number of persons with computers and modems is booming" (Zeitzer, 1991).
Limitations:
Despite advancements these technologies have yet to make these people completely independent. Environment should also facilitate such people as there are still public buildings where ramps are not there for people with mobility impairment. Some technologies provide indispensable help to blind people to carry on their work but it has certain limitations as well. Due to the high cost everyone cannot afford to utilize these technologies. Another limitation that Braille display has is that most of the blind people in U.S. do not understand Braille which makes them unable to utilize the benefits of this technology. However, people also adapt technology to their own needs by reinvention and also face problems & issues. "The degree to which technology is changed or modified by a user in the process of its adoption and implementation is termed re-invention (Rogers, 1995). Many individuals with disabilities have devised additions or modifications to their devices to meet their unique needs (Zola, 1982). As a result of re-invention, technology can become more appropriate in meeting an individual's present needs and more responsive to future needs that arise (Rogers, 1995)" (Riemer-Reiss & Wacker, 2000).
Mental Disability & Technology
People with neurological disabilities may communicate by writing, typing, or using a communication board or other electronic device. Assistive devices that are used for many learning and cognitive impairments often mingle with the devices that are used by the people suffering from other impairments. For instance, a cognitive condition called cerebral palsy may be the combination of visual, mobility, and hearing impairment. So, the person suffering from cerebral palsy may use any of the devices used by those who are suffering from other impairments. However, there is a special software for cognitive impairment called word prediction software for those who have very slow typing speed. This software predicts the word which the user intend to type on the basis...
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