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Journals ACM SIGLASH Newsletter Volume 12 Issue 2

In computer assisted instruction (CAI), a dialogue of information can be maintained between the computer and a learner without dependence upon normal vision. This is possible because there are several media alternatives for information input to the learner. These alternatives include large print (visual), braille (tactile), the OPTACON reading system (tactile), and auding (auditory). The criteria used to evaluate each medium for information input include the percentage of the visually handicapped population that can use the medium, the requirements for recoding information for the medium, learner skill development for using the recoded information, the words-per-minute information transfer of the medium, and its instructional effectiveness. The criteria used to evaluate each medium for CAI application are the following: the technological feasibility of integrating it into a CAI system; the recoding of the instructional material for use through the medium; and the cost of the medium. The following discussion is divided into three main sections: the primary design objective of computer assisted instruction for the visually handicapped, alternatives to visual communication, and selection of a nonvisual medium for computer assisted instruction.

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Objective and alternatives for a computer assisted instruction system for the visually handicapped

Ballenger, William L.
ACM SIGLASH Newsletter , Volume 12 (2)
Association for Computing Machinery – Jun 1, 1979

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