Model Paper 2

11th Standard

    Reg.No. :
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Computer Science

Time : 01:00:00 Hrs
Total Marks : 80

    Part A

    Answer all the following questions

    5 x 1 = 5
  1. Name the volatile memory _____

    (a)

    ROM

    (b)

    PROM

    (c)

    RAM

    (d)

    EPROM

  2. Which device used CCD chip?

    (a)

    Light pen

    (b)

    Scanner

    (c)

    Microphone

    (d)

    Digital Camera

  3. Which of the following is not a Function of Operating System?

    (a)

    Process Management

    (b)

    Memory Management

    (c)

    Security management

    (d)

    Compiler Environment

  4. Which one of the following is not a function of an operating system?

    (a)

    Program Management

    (b)

    Process Management

    (c)

    Device Management

    (d)

    Memory Management

  5. Which of the following is the most widely used notation to represent algorithms?

    (a)

    Flowchart

    (b)

    Pseudo code

    (c)

    English language

    (d)

    all of these

  6. Part B

    Answer all the following questions

    9 x 2 = 18
  7. Write the functions of control unit.

  8. Define IPO Cycle.

  9. List out different distributions of Linux operating system.

  10. Mention different management techniques?

  11. Distinguish between a condition and a statement.

  12. What is meant by Decomposition?

  13. What is the output of the following code?
    for (int i=2; i < =10 ; i + =2)
    cout << i;

  14. What is the error in the following structure definition.
    struct employee{ inteno;charename[20];char dept;}
    Employee e1,e2;

  15. How is encapsulation and abstraction are interrelated?

  16. Part C

    Answer all the following questions

    9 x 3 = 27
  17. Differentiate optical and Laser mouse.

  18. What is Nano-technology?

  19. Explain and list out examples of mobile operating system.

  20. Write few goals of scheduling.

  21. What is case analysis?

  22. Draw a flowchart for alternative control flow.

  23. Convert the following if-else to a single conditional statement:
    if (x >= 10)
    a = m + 5;
    else
    a = m;

  24. The following code sums up the total of all students name starting with ‘S’ and display it.Fill in the blanks with required statements.
    struct student {int exam no,lang,eng,phy,che,mat,csc,total;char name[15];};
    int main()
    {
    student s[20];
    for(int i = 0; i < 20; i ++)
    {
    …………………….. //accept student details
    }
    for(int i = 0; i < 20; i ++)
    {
    …………………….. //check for name starts with letter “S”
    ……………………. // display the detail of the checked name
    }
    return 0;
    }

  25. Define information hiding.

  26. Part D

    Answer all the following questions

    6 x 5 = 30
  27. Explain the basic components of a computer with a neat diagram.

  28. What are Registers? Explain the five Registers that are essential for instruction execution.

  29. Explain the main purpose of an operating system

  30. Decanting problem. You are given three bottles of capacities 5 ,8 and 3 litres. The 8L bottle is filled with oil, while the other two are empty. Divide the oil in 8L bottle into two equal quantities. Represent the state of the process by appropriate variables. What are the initial and final states of the process? Model the decanting of oil from one bottle to another by assignment. Write a sequence of assignments to achieve the final state.

  31. Write a note on case analysis.

  32. Write a program to find sum of the series
    S = 1 + x + x2 +..... + xn

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