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| Kerr, Joseph Jackson, Jr. | 1 |
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Kerr, Joseph Jackson, Jr. – 1974
This historical study describes the development of braille and non-braille devices designed to aid the blind in arithmetic computations. Several such devices are described and evaluated. The author concludes that documentation of the development of arithmetic devices is unavailable, especially about the nature of 17th and 18th century devices…
Descriptors: Arithmetic, Blindness, Braille, Computers
