HISSAN CENTRAL EXAMINATION2080 (2023)Grade : XI F.M. : 50 Time : 2 hrs
COMPUTER SCIENCE (4271)
( Candidates are required to give their answers in their own words as far as
practicable. The figures in the margin indicate full marks.)
GROUP AMultiple Choice Questions.
Tick / Select the best alternative. [9 X 1 = 9 ]
1. The main electronic device used by second generation computer is.
a. Vaccum tube
b. IC chip
c. Transistor
d. Microprocessor
2. Laptop that we used is a type of which of these categories?
a. Microcomputer
b. Super Computer
c. Mimi Computer
d. All of these
3. The function scan f () is used to
a. To exit from program
b. Input a set of values
c. display the message or value
d. Do mathematical manipulation
4. Which of the following is application software?
a. Windows OS
b. language translator
c. MS-word
d. Device driver
5. Which of the following tag is used for inserting the largest heading in HTML?
a. <h3>
b.<h1>
c. <h5>
d.<h6>
6. Putting files to the server from the computer is
a. Downloading
b. Uploading
c. Trashing
d. Transferring
7. It is an act of stealing (like copying, distributing, modifying, selling) of software
that is legally protected.
a. Renting.
b. Software piracy
c. copyright
d. Hacking
8. Which of the following expressions is in the sum-of-products (SOP) form?
a. (A + B)(C + D)
b. (A)B(CD)
c. AB(CD)
d. AB + CD
9. RAM is _ _ _ _ _ _ and _ _ _ _ _.
a. volatile, temporary
b. non-volatile, temporary
c. volatile, permanent
d. non-volatile, permanent
GROUP B
Short Answer Questions
Attempt all questions. [5 X 5 = 25]
9. What is computer? Differentiate between mini and microcomputer. [1+4]
10. What is octal number system? Convert (ACCA)16 into octal number system.
[1+4]
OR
Explain AND and OR gate with truth table and logic gate. [2.5+2.5]
11. Write any five applications of spread sheet software. [5]
OR
What is digital signature? Explain. [5]
12. What is HTML? Explain any two HTML tags. [2+3]
13. How is multimedia used in business? Explain. [5]
GROUP C
Long answer Questions
Attempt all questions. [2 X 8 = 16]
14. What is OS? Explain any three functions of OS. [2+6]
15. Write a C program to enter 10 integer numbers into an array and display the
entered number and also calculate the sum of the entered numbers. [4+4].
OR
Write a C program to enter two strings and concatenate two strings, the program
should also convert first entered string into uppercase string. [2+3+3]
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