Computer-Studies Exam Past Questions and Answers | JAMB, WAEC and NECO

Computer Studies covers general knowledge of computers, computing terms, and technologies. It focuses on building interest and confidence in using computers.

• Question 221:

  The Output will be a HIGH for any case when one or more inputs are one for a(an)

  Options:
  A) OR gate
  B) AND gate
  C) NOR gate
  D) NOT gate
  Show Answer
  The correct answer is A .
• Question 222:

  What part of the central processing unit coordinates other units and manages the computer resources ?

  Options:
  A) coordinating unit
  B) Memory unit
  C) Arithmetic Logic unit
  D) Control unit
  Show Answer
  The correct answer is D .
• Question 223:

  At least how many keys is a keyboard made up of?

  Options:
  A) 105
  B) 107
  C) 101
  D) 103
  Show Answer
  The correct answer is C .
• Question 224:

  When does the output of a NOR gate =0?

  Options:
  A) whenever 0 is present at input
  B) only when all input =0
  C) whenever 1 is present at input
  D) only when all input =1.
  Show Answer
  The correct answer is C .
• Question 225:

  The end users are able to operate at the _______ tier.

  Options:
  A) model
  B) application
  C) data
  D) presentation
  Show Answer
  The correct answer is D .
• Question 226:

  ___________ is the combination of already processed _____________

  Options:
  A) information /data
  B) data /information
  C) information /instructions
  D) instructions /Data
  Show Answer
  The correct answer is A .
• Question 227:

  Which of the following is termed as the minimum error code?

  Options:
  A) binary code
  B) gray code
  C) excess 3 code
  D) octal code
  Show Answer
  The correct answer is B .
• Question 228:

  What does CO stand for in COBOL?

  Options:
  A) common object
  B) common
  C) computer oriented
  D) common operating
  Show Answer
  The correct answer is B .
• Question 229:

  What is the etiquette one should follow while working online?

  Options:
  A) Anything goes . . . providing he/she remains anonymous
  B) Netflix
  C) Netiquette
  D) Piracy
  Show Answer
  The correct answer is C .
• Question 230:

  Which of these commands will reboot the computer ?

  Options:
  A) Ctrl + Alt + Del
  B) Ctrl + Del
  C) Ctrl + Alt + C
  D) Ctrl + Alt
  Show Answer
  The correct answer is A .