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2003 Course Computer Techniques & Applications

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Total No. of Questions : 12] [Total No. of Pages : 3 [3664] - 251 P 1164 B.E. (Instrumentation & Control) COMPUTER TECHNIQUES & APPLICATIONS (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any 3 questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of logarithmic tables, slide rule, mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. Q1) a) b) SECTION - I With a neat diagram, explain the Process Control Block and its various fields. [8] List and explain the five states through which a process may go during its execution. [10] OR Q2) a) b) List and explain any four CPU scheduling algorithms. [8] What are deadlocks? Explain any four methods for preventing deadlocks. [10] Q3) a) What is external and internal fragmentation? How does paging help in minimizing fragmentation? [8] What is virtual memory? With the help of neat diagram explain the implementation of virtual memory through Demand Paging. [8] b) OR Q4) a) b) With neat diagrams, explain any two file allocation methods. With neat diagram explain Overlays. [8] [8] Q5) a) The following figure is the precedence graph of Jobs J1 to J8. The number next to the name of each job is its execution time. The priorities are J1, J2, J3 ........ J8, J1 being the highest priority job. All jobs are released at P.T.O.

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