BSc IT Sem III 2012 2013 2013 MOS Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii) Figures to the right indicate full

1. Q1 Explain abstract view of computer system with diagram
   • b) What are the different phases of compiler ?
   • c) Explain multiprocessing operating system with its advantages
   • a) What are the different types of system calls ? What is virtual machine explain with.example ? Explain layered structure of operating 2
2. Q3 Attempt (any 2): 10 marks
   • a): Write short note on structure of process control block
   • b) Calculate average waiting time and draw gantt chart for following processes using FCFS Define Threads, Benefits of multithreading
3. Q4 Attempt (any 2):
   • a) Explain concept of paging
   • b) Write a short note on Logical Versus Physical Address Space Consider the following page reference string How many page faults would occur for FIFO replacement algorithm consider frame
   • a) What is ‘deadlock ? How to Prevent deadlock
   • b) Explain file attributes
4. Q6 Attempt: (any 2):
   • a) Write short note on Application YO interface
   • b) Explain Access matrix Explain different types of viruses

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