The following statements are on general IO operations and In
     The following statements are on general I/O operations and Interrupts. Which one is incorrect?  The efficiency of the three IO modes can be ranked as Polling  
  
  Solution
Question 1 Ans) C Interrupt routine is the set of code triggered by interrupt i.e the code in interrupt routine only executed when interrupt occurs
Question 2 Ans) D Each interrupt is associated with interrupt vector
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