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1

Which of the following persons invented the punch card machine?

  • A. Blaise Pascal
  • B. Gottfried Leibniz
  • C. J. Prosper Eckert
  • D. Dr. Herman Hollerith
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2

Convert 478 to its binary equivalent.

  • A. 100111\(_2\)
  • B. 110011\(_2\)
  • C. 10001\(_2\)
  • D. 1111011\(_2\)
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3

The operation of checking input data against specified criteria is referred to as.

  • A. data verification
  • B. data validation
  • C. data cross check
  • D. data control
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
4

Which of the following is not a source of data collection.

  • A. observation
  • B. interview
  • C. questionnaire
  • D. classification
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5

Which of the following is true about digital computers.

  • A. They consist of magnetic core memory.
  • B. they understand data as a continuous measurement of a physical quantity.
  • C. they represent numbers through a string of binary digits.
  • D. they are mainly used for scientific purposes.
View Answer & Discuss (6) WAEC 2015
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free