Model Set-Computer-Grade XI(11)-NEB-HISSAN

 

COMPUTER MODEL SET

F.M. : 50

Time : 2 hrs

COMPUTER SCIENCE (4271)

          (The candidates are required to give their answers in their own words as far as

practicable. The figures in the margin indicate full marks.

GROUP A

Multiple Choice Questions.

Tick/ Select the best alternative.        [9 × 1 = 9]

1. The main electronic device used by fourth generation computer is.

          a. Transistor

          b. vaccum tube

          c. IC chip

          d. Microprocessor

2. Which type of computer can handle analog as well as digital data?

          a. Digital

          b. Analog

          c. Hybrid

          d. All of these

3. The function print f () is used to

          a. To take logical direction

          b. Input a set of values

          c. display the message or value

          d. Do mathematical manipulation

4. Which of the following is a utility software?

          a. Windows OS

          b. Language translator

          c. Antivirus

          d. MS-word

5. Which character is used to represent the closing of a tag in HTML?

          a.   \

          b.   !

          c.   /

          d.  .

6. The address of a website is also known as

          a. Location

          b. Mail id

          c. URL

          d. None of these

7. Copyright, patents and trademarks are the examples of

          a. Protocols

          b. Cyber Law

          c. Ethics

          d. Intellectual property rights

8. For the output of an EX-NOR gate is 1. Which input combination is correct?

          a. A = 1, B = 0

          b. A = 0, B = 1

          c. A = 0, B = 0

          d. A = 0, B’ = 1

9. Which of the following is the lowest in the computer memory hierarchy?

          a. Cache

          b. RAM

          c. Secondary memory

          d. CPU registers

GROUP B
Short Answer Questions:
Attempt all questions. [5 × 5 = 25]

10. What is computer? Differentiate between super and mainframe computer.[1+4]

11. What is decimal number system? Convert (CA)16 into octal number system.[1+4]

OR

Explain AND and OR gate with truth table and logic gate.[2.5+2.5]

12. Write any five applications of word processor.[5]

OR

What is computer ethics? Explain.[5]

13. Explain any two table related tags of HTML.[2.5+2.5]

14. How is multimedia used in entertainment? Explain.[5]

GROUP C
Long answer Questions :
Attempt all questions.[2 × 8 = 16]

15. What is OS? Explain any three functions of OS.[2+6]

16. What is loop? Write syntax of for loop. Write a C program to calculate a factorial

value of a number.[2+2+4]

OR

What is an array? Write a C program to enter two 2*2 matrix and find the sum

of two matrix.[2+6]

THE END