Name the non-optical aid that makes use of raised dots on a paper. Who Developed this resource for visually
challenged persons? Write a short note on it.
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Explanation:
Non-optical aids,they include (i) tactual aids (the student can use their sense of touch ; then the visually impaired can learn to read and 2write by using a special touch system called Brallie. This make them use of raised dots on a paper.)
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