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 141:

  Evaluate ${1011}_2+{122}_4$, leaving your answer in base 10.

  Options:
  A) 37
  B) 51
  C) 47
  D) 73
  Show Answer
  The correct answer is A .
• Question 142:

  The connection between two or more computers to share resources or allow electronic communication is called ?

  Options:
  A) Connection
  B) Communication
  C) Transfer
  D) Network
  Show Answer
  The correct answer is D .
• Question 143:

  Storage which retains data after power cut off is called.

  Options:
  A) Volatile storage
  B) Non-volatile storage
  C) Sequential storage
  D) Direct storage
  Show Answer
  The correct answer is B .
• Question 144:

  The device primarily used to provide hardcopy is the?

  Options:
  A) printer
  B) card reader
  C) computer console
  D) CRT
  Show Answer
  The correct answer is A .
• Question 145:

  The two types of operating system are

  Options:
  A) command line and graphical user interface
  B) translators and assemblers
  C) system software and application software
  D) UNIX and LINUX
  Show Answer
  The correct answer is A .
• Question 146:

  The default file extension for PowerPoint version 2007 and newer is ?

  Options:
  A) .ppxt
  B) .pps
  C) .ppt
  D) .pptx
  Show Answer
  The correct answer is D .
• Question 147:

  EDVAC was produced using which of these concepts ?

  Options:
  A) packet routing
  B) stored program
  C) circuit switching
  D) packet switching
  Show Answer
  The correct answer is B .
• Question 148:

  The memory unit receives data and information from which unit?

  Options:
  A) input unit
  B) output unit
  C) control unit
  D) arithmetic and logic unit
  Show Answer
  The correct answer is D .
• Question 149:

  Files that maintain the hierarchical structure of the file system.

  Options:
  A) Descriptors
  B) Directories
  C) Modifiers
  D) Relative files
  Show Answer
  The correct answer is B .
• Question 150:

  Analog, digital and hybrid computers are classification of computers based on

  Options:
  A) the type of data-handling techniques
  B) the purpose
  C) the size
  D) the functionality
  Show Answer
  The correct answer is A .