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186

If the output signal of any logic gate is fed into an inverter, the results is?    .

  • A.  NOT gate    
  • B. Nor gate     
  • C. the inverse of the output signal    
  • D. the same as the output signal
View Answer & Discuss (1) WAEC 2015
187

The device through which the main components of the computer communicate with each other is called?   

  • A.  keyboard   
  • B.  memory    
  • C. light pen    
  • D. system bus
View Answer & Discuss (4) WAEC 2015
188

The hardware of a computer does not consist of?  

  • A. casing     
  • B.  mouse   
  • C. peripherals    
  • D. windows
View Answer & Discuss WAEC 2015
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189

Output devices in a computer are those devices that send?     

  • A. results to the memory of the computer      
  • B.  processed data and instructions into the computer        
  • C. in data and instructions into the computer     
  • D. data and instructions into the memory of the computer
View Answer & Discuss (8) WAEC 2015
190

Which of the following is not a mobile input device?       

  • A. Joystick     
  • B. Light pen   
  • C.  Mouse   
  • D. Scanner
View Answer & Discuss WAEC 2015
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