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Posted By: bharath sudar Member Level: Platinum Posted Date: 13 May 2008
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2007 Indira Gandhi National Open University (IGNOU) Post Graduate Diploma Computer Application INTRODUCTION TO SOFTWARES Question paper
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1. Explain the working of a 2-pass assembler in detail. (6)
2. Write a shell program to copy the contents of file1 to another file2. Also write an algorithm for it. (6)
3. Explain the client-server model with the help of an example application. (6)
4. Explain the following concepts in UNIX with an example for each : (6) (i) filters (ii) pipes (iii) file permissions (e) Explain various stages of systems investigation (6)
5. Explain the concept of Buffering with the help of a diagram (4)
6. How can compaction be a solution for the external fragmentation problem in memory management? Illustrate with the help of an example. (6)
7. Explain with suitable examples : (5) (i) inodes (ii) file structure in UNIX
8. What do you understand by syntax and sernantic analysis? Explain in detail. (5)
9. What is 4GL? What are its limitations? How can 4GLs help in solving the software problems? (5)
10. Define the following UNIX commands: (5x1=5) (i) echo (ii) cat (iii) ls (iv) cc (v) admin
11. List and explain the mechanism to support the file protection in multiuser environment.
12. List and explain any five important qualities of a software product. (5)
13. Explain all the phases of compiler design in detail. (6)
14. Explain Address mapping scheme in a segmented system with the help of a diagram. (6)
15. What are the different stages in a SDLC Model? Explain in detail. (6)
16. Write a shell program that counts the number of characters, words and lines in a given file. (6)
17. Design an algorithm and draw a corresponding flow chart to convert a Decimal number to its corresponding Binary number. (6)
18. Explain the concept of "spooling" with the help of a diagram.
19. What are the various types of file organisation methods ? Discuss their relative advantages and disadvantages. (6)
20. Explain dynamic loading and linking with example. (5)
21. Write a Shell Program to sort the list of numbers given in a file, in ascending order. (5)
22. What is GUI ? What are its features ? Also explain its major components with reference to any Windows Operating System (5)
23. Define UNIX commands for the following : (5x1=5) (i) to run a process in background (ii) to list all the files in the current working directory (iii) to credtea file using any editor (iv) to copy filel to file2 in same directory (v) to change the password of a user
24. Name and explain disk allocation methods. Mention their relativea dvantagesa nd disadvantages. (5)
25. What are Fourth Generation Languages (4 GLs)? How are they different from earli,er Programming Languages? Give any two examples of 4 GLs. (5)
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