Pre University Board 2009 P.U.C Physics, Chemistry, Maths & Biology 2nd computer science - Question Paper

Code No. 41
Total No. of ques. : 37 ] [ Total No. of Printed Pages : four
June/July, 2009
COMPUTER SCIENCE

Time : three Hours 15 Minutes ] [ Max. Marks : 90



PART – A
Note : i) ans all the ques..
ii) every ques. carries 1 mark. 10 × one = 10
1. What is the function of Instruction Register ?
2. Expand UPS.
3. describe modularity.
4. What is searching ?
5. provide 1 characteristic of the subscript of an array.
6. What is the significance of ? operator in pointers ?
7. Expand DML.
8. describe alternate key.
9. What is the main disadvantage of ring network topology ?
10. Mention any 1 HTML tag.

Code No. 41 two
PART – B
Note : i) ans any ten ques..
ii) every ques. carries 2 marks. 10 × two = 20
11. Write any 2 impact printers.
12. Mention various iterative programming constructs.
13. Construct a top-down module chart for finding the area of a rectangle.
14. How do you declare and initialize one-dimensional array ?
15. provide the syntax for strrev ( ) and strcmp ( ).
16. Write a structure definition for a learner with the subsequent fields :
Regno, Name, Combination, Totalmarks.
17. Mention any 2 differences ranging from call by value and call by reference.
18. List the steps involved in data processing cycle.
19. Write any 2 applications of on-line system.
20. describe DBMS. Name any 1 DBMS package.
21. discuss any 2 DATE functions used in spreadsheets.
22. elaborate the various internet services ?

three Code No. 41
PART – C
Note : i) ans the subsequent ques..
ii) every ques. carries 5 marks. eight × five = 40
A. ans any 2 ques. :
23. Briefly discuss any 5 components of motherboard.
24. Write the approximate power consumption of different components of a
PC.
25. What is a computer virus ? discuss any 2 viruses. Name any 2
antivirus software.
B. ans any 1 ques. :
26. Trace binary search algorithm to obtain the location of the element 22 in
the subsequent list :
22, 33, 49, 57, 75
27. Write an algorithm for insertion sort.
C. ans any 3 ques. :
28. Write a C program to learn and print elements of two-dimensional
array.
29. List the various categories of user described functions. discuss any
one.
30. Write a C program to count number of vowels and consonants current
in a provided string.
31. discuss the different file handling functions available in C.

Code No. 41 four
D. ans any 2 ques. :
32. Write merits and demerits of sequential file organisation.
33. Write the qualities of info.
34. discuss e-commerce.
PART – D
Note : i) ans any 2 ques..
ii) every ques. carries ten marks. two × 10 = 20
35. Write a flowchart to obtain the sum of the series :

36. Write a recursive function to calculate , where n = 0, n < 0 and n > 0.
37. i) Write a note on functional overview of Unix operating system. four
ii) discuss various kinds of computer network. four
iii) Write Syntax for INSERT command in SQL. two

Earning:   Approval pending.