1. Which of the following is an example of a spooled device?

1. 1. A line printer used to print the output of a number of jobs

   
   
   

   2. A terminal used to enter input data to a running program

   
   
   

   3. A secondary storage device in a virtual memory system

   
   
   

   4. A graphic display device

   
   
   

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   NA

   Correct Option: A

   NA

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2. When a CPU is interrupted, it
   

1. 1. stops execution of instructions

   
   
   

   2. acknowledges interrupt and branches to a subroutine

   
   
   

   3. acknowledges interrupt and continues

   
   
   

   4. acknowledges interrupt and waits for the next instruction from the interrupting device

   
   
   

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   NA

   Correct Option: B

   NA

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3. A microprocessor, on arrival of RESET signal returns, from HALT state to

1. 1. execute

   
   
   

   2. fetch

   
   
   

   3. interrupt

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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4. The frequency of the driving network connected between pin 1 and 2 of a 8085 chip must be

1. 1. twice of the desired clock frequency

   
   
   

   2. equal to the desired clock frequency

   
   
   

   3. four times the desired clock frequency

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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5. A microprocessor with a 12– bit address bus will be able to access
   

1. 1. 1 kilobyte of memory

   
   
   

   2. 4 kilobytes of memory

   
   
   

   3. 8 kilobytes of memory

   
   
   

   4. 0.4 kilobytes of memory

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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