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A new communications technique for the nonvocal person, using the Apple II Computer
Bulletin of Prosthetics Research
|January 1, 1982
Summary
This study presents a nonvocal communication system for severely handicapped individuals using an Apple II computer and Visi-Calc software. The system utilizes pseudo-Morse code input for sentence generation, offering a novel assistive technology.
Area of Science:
- Assistive Technology
- Human-Computer Interaction
- Rehabilitation Engineering
Background:
- Severely handicapped individuals often face challenges with vocal communication.
- Existing assistive communication technologies may have limitations in cost, portability, or accessibility.
- Personal computers offer potential platforms for developing customized communication solutions.
Purpose of the Study:
- To describe a nonvocal personal communication technique for severely handicapped individuals.
- To demonstrate the adaptation of standard software (Visi-Calc) for communication purposes.
- To outline a method utilizing pseudo-Morse code input via a two-switch device.
Main Methods:
- Utilized an Apple II computer system with Visi-Calc software.
- Implemented a pseudo-Morse code input method via a two-switch device, controlled by chin or finger motions.
- Employed the JHU/APL Morse code interface card for input.
- Adapted Visi-Calc's row-column matrix features for sentence retrieval and modification.
Main Results:
- A functional nonvocal communication system was developed using readily available hardware and software.
- The system allows users to generate and modify stored sentences for personal communication.
- No specialized programming experience or unique components (except the interface card) are required.
Conclusions:
- The described system offers a viable nonvocal communication method for severely handicapped individuals.
- While cost-effectiveness and portability require further study, the system leverages existing personal computer resources.
- The technique is replicable, requiring minimal technical expertise for implementation.
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