- A Naptologia
- B Vibologia
- C Semiconductor
- D Rabdologia
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Answer:
D
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Napier’s Bones (1617)
Inventor: John Napier (Scotland)
Characteristics:
- Three dimensional structure.
- Holding numbers from 0 to 9 only.
- Represent graphical structure of calculatingresult.
Applications:
- Perform multiplication on numbers.
- Technology used for calculation called Rabdologia.
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