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Operating Systems and their Utilities

  • Explain the main features of an Operating System along with the services it provides ?
  • Define a process, its states with the help of a diagram ?
  • Explain PCB and Process context.
  • Contrast and explain Multiprogramming and Multitasking ?
  • For the following jobs calculate average waiting time for (i) Round Robin (q=2) (ii) Shortest job first algorithms
  • What is Process Synchronization?
  • How is the process synchronization achieved ?
  • Describe a Semaphore ?
  • Explain mutual exclusion and synchronization with example.
  • Describe a Semaphore.
  • Define Deadlock and its characteristics.
  • Discuss a file descriptor ?
  • Discuss the different directory structures of different operating systems.
  • Explain in brief the UNIX File Structure ?
  • Write a short note on IOS-UI elements.
  • Compare and contrast IOS and Android Operating Systems.
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