76. How many output lines are there in the display section?

1. 1. 2

   
   
   

   2. 4

   
   
   

   3. 8

   
   
   

   4. 16

   
   
   

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1. View Hint View Answer Discuss in Forum

   8 The display section has eight O/P lines divided into two groups A_o – A₃ and B_o – B₃

   Correct Option: C

   8 The display section has eight O/P lines divided into two groups A_o – A₃ and B_o – B₃

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77. How many scan lines are there in 8279?

1. 1. 2

   
   
   

   2. 4

   
   
   

   3. 8

   
   
   

   4. 16

   
   
   

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   4 The scan section has four scan lines (SL_O – SL₃)

   Correct Option: B

   4 The scan section has four scan lines (SL_O – SL₃)

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78. How many pins make up the keyboard section in an Intel 8279?

1. 1. 8

   
   
   

   2. 10

   
   
   

   3. 4

   
   
   

   4. 6

   
   
   

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1. View Hint View Answer Discuss in Forum

   10
   Eight times RL_O – RL₇ and two additional shift and [NTL/ STB]

   Correct Option: B

   10
   Eight times RL_O – RL₇ and two additional shift and [NTL/ STB]

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79. Which of the following is/are function(s) of 8279?

1. 1. As a keyboard

   
   
   

   2. For scan

   
   
   

   3. For display

   
   
   

   4. All of these

   
   
   

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   All (keyboard, display, scan)

   Correct Option: D

   All (keyboard, display, scan)

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80. What is the IC no. for the programmable keyboard display interface?

1. 1. Intel 8237

   
   
   

   2. Intel 8279

   
   
   

   3. Intel 8234

   
   
   

   4. Intel 8179

   
   
   

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1. View Hint View Answer Discuss in Forum

   Intel 8279

   Correct Option: B

   Intel 8279

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