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Which of the following computing devices did not exist in the pre-computing age to the ...

Which of the following computing devices did not exist in the pre-computing age to the 19th century?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Napier's bone
  • B Abacus
  • C ENIAC
  • D Slide Rule
Correct Answer: Option C
Explanation:

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