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User programs interact with I/O devices through ?

  • Operating System
  • Hardware
  • Buses
  • Processor

Answer: Option A

Similar Questions :

1. In which condition only one process holds a resource at a given time ?

  • Circular queue
  • Hold and Wait
  • Mutual exclusion
  • Non preemption

Answer: Option C

2. Which operation with floating point numbers are more complicated then arithmetic operation with fixed point number ?

  • Logical operation
  • Arithmetic operation
  • Both of above
  • None of above

Answer: Option B

3. The performance of the cache memory is measured in terms of ?

  • Hit Ratio
  • Chat Ratio
  • Copy Ratio
  • Data Ratio

Answer: Option A

4. One byte equals to how many bits ?

  • 4 bits
  • 8 bits
  • 12 bits
  • 16 bits

Answer: Option B

5. Which determines the address of I/O interface ?

  • Register select
  • Chip select
  • Both of above
  • None of above

Answer: Option C

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