WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free

Computer Studies Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

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
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
61

The logic gates represented in Figure 1 is called 

  • A. AND gate
  • B. NAND gate
  • C. NOR gate
  • D. OR gate
View Answer & Discuss WAEC 2021
62

Use the logic gate in Fig 2 to answer question 12.

Which of the logic gates will give an output opposite to the input state?

  • A. X
  • B. Y
  • C. Z
  • D. X and Y
View Answer & Discuss WAEC 2021
63

Use the logic gate in Fig 2 to answer question 13.

Which of the following statements is true about logic gates X and Y?

  • A. They both have multiple output variables
  • B. The output state of each depends on the input state
  • C. The output is true only if all inputs are true
  • D. They are both equivalent gates.
View Answer & Discuss (3) WAEC 2021
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
64

The logical equation for the logic circuit in Figure 3 is

  • A. \(\overline{A+B}\) \(\overline{C}\)
  • B. Z=A.B+C
  • C. Z=A+B.C
  • D. Z=\(\overline{A.B}\) + \(\overline{C}\)
View Answer & Discuss WAEC 2021
65

The operation of a computer and peripherals attached to it is controlled by

  • A. application
  • B. hardware
  • C. live ware
  • D. system software
View Answer & Discuss WAEC 2021
Start a Free Practice Test
 
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free