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 161:

  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 162:

  The diagrammatic representation of an algorithm is

  Options:
  A) pseudocodes
  B) codes
  C) graphics
  D) flowchart
  Show Answer
  The correct answer is D .
• Question 163:

  A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is ___________

  Options:
  A) AND gate
  B) OR gate
  C) NAND gate
  D) XOR gate
  Show Answer
  The correct answer is D .
• Question 164:

  How many bits are in one nibble ?

  Options:
  A) 2
  B) 4
  C) 8
  D) 16
  Show Answer
  The correct answer is B .
• Question 165:

  What does a linker program do?

  Options:
  A) it places the program in the memory for execution
  B) relocates the program to execute from the specific memory area allocated to it
  C) Links the program with other programs needed for its execution
  D) interface the program with the entities generating its input data
  Show Answer
  The correct answer is C .
• Question 166:

  Which program translates programs to a simpler language that the computer can execute.

  Options:
  A) Compiler
  B) Interpreter
  C) Processor
  D) algorithm
  Show Answer
  The correct answer is A .
• Question 167:

  Which of these is not true about peer-to-peer network ?

  Options:
  A) there is no dedicated servers
  B) it has a strong security system
  C) all computers in this network are known as peers
  D) there is no hierarchy among the computers
  Show Answer
  The correct answer is B .
• Question 168:

  Which of the following is NOT a high-level programming language?

  Options:
  A) Assembly language
  B) C++
  C) Python
  D) Java
  Show Answer
  The correct answer is A .
• Question 169:

  A device that sends and receives printed pages or images over telephone lines by digitizing the material with an internal optical scanner and transmitting the information as electronic signals is a

  Options:
  A) ATM
  B) scanner
  C) GSM
  D) fax machine
  Show Answer
  The correct answer is D .
• Question 170:

  A set of moral principles that regulate the use of computers is called

  Options:
  A) cyber security guidelines
  B) computer ethics
  C) computer safety laws
  D) computer rules
  Show Answer
  The correct answer is B .