HIGHER SECONDARY MODEL EXAMINATION FEBRUARY 2012 COMPUTER APPLICATIONS(COMMERCE) HSE I

TIME 2 HRS

TOTAL SCORE:60 COOL OFF TIME 15 Mts

INSTRUCTIONS 1. Read questions carefully before answering. 2. Maximum time allowed is 2 hours 15 minutes, including cool off time. 3. First 15 minutes is cool off time, during which you should not answer the questions. This time is meant to read the questions carefully. 4. Answers can be written in English or in Malayalam. Answer all questions.

1. In VB programme variables are declared using ________ statement

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2. Indian railway has online reservation system. For that railways use which of the following network (Internet, WAN, Intranet, LAN) Score 1 3. Your friend owns a DTP shop. Which type of printer is most suitable for that shop ?

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4. Specify the extension of project files saved in Visual Basic.

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5. Your school plans a study tour to Bangalore. Which internet service can be used to know more about Bangalore?

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6. You have to store a file of size 2MB and you have only one floppy disk of size 1.44 MB. Which utility will help you to store this file in that floppy?

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7. Write an example of “Free Software”

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9. In office 'A' data processing is done using computer. In office 'B' it is done manually? Which is the best method for data processing. Justify your answer.

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10. Find the Octal Number corresponding to the following numbers using short cut method a)

(CD)16

b)

(DEA)16

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11. Compare RAM and ROM

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12. In your school there are six computers. There is a plan to network these computers. 1)Suggest any three suitable methods for this with the help of a figure. 2) Explain each of its merits and demerits

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13. Identify the different components in the website address http://www.kerala.gov.in/indes.html 14. Your friend plans to take internet connection. What are the software and hardware requirements for that?

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15. We know, computers can understand only binary language. But all documents and programs are input using keyboard in English or other languages. How can computer understand or translate these into a computer recognizable format?

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16.As a student of computer application your friend discussed his plan to purchase new computer and he asked a suggestion regarding the software and hardware. What will be your

suggestion? ( hint:- capacity of processor,hard disk, primary memory etc are needed) 17. What are Syntax Errors and Logical Errors? 18 Write algorithm to find the sum of n natural numbers. Draw a flow chart for this algorithm

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19. Explain the role of computers in Education

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20.

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Match the following A

B

MRI

Display

ISDN

Banking

ATM

Medical

LCD

Communication Education

21. The manager of a company wishes to automate his office. How can he done this effectively score 3 22. you want send the photos of onam clebration in your school to you brother working in new delhi. a) What method can be used , so that your brother receives it within seconds score 1 b) Explain the steps to perform this operation Score 2 23. Distinguish between Properties, Methods and Events with one example each. Score 3 24. Form is the building block VB application. Explain

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25. VB is an 'Event Driven Programming Language'. Explain this statement. 26..During design time , a label has to behave in the following manner a) it should shrink or grow to fit its content b) it should vertically grow to fit its contents How can it be realized?

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27.Explain different data types used in VB

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28.What you mean by control structures? Explain decision structures.

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OR 29..What are the important operators used in a VB application? 30. Re write the following code using For.......Next loop Dim i as integer Dim s as integer i=1 s=0 Do while i<=50 print i s=s+i i=i+1 loop

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