HSEB question model of computer science
Grade : 11
For : 2070
Time : 3hrs
F.M. : 75
P.M : 27
Group A (long answer question)
Attempt all the questions. [3 X 10 = 30]
1. Draw a well-labeled diagram of typical architecture of a computer system and explain the main function of Control Unit and ALU. [4+3+3]
2.
1. What is an operating system ? Explain any three function of an operating system.
2. The “WiMP” environment is much more user-friendly, why ?
OR
1. What is cell addressing and explain different types of cell addressing used in spreadsheet.
2. Write a tag to design your personal web page to link photo family, background and banner page using frame. [5+5]
3.
- Define flowchart and pseudocode. Explain their significance in programming. [5]
- Write a pseudocode to accept any three numbers and output the largest among them. [5]
Group B (Short answer questions)
Attempt any **nine questions. [9 X 5 = 45]**
4. Classify the computers according to their generation based on the technology used. [5]
5. Differentiate between analogue and digital computer, explain with examples. [5]
6. What do you mean by number system? Why do digital computers use binary numbers for their operation ? [2 + 3]
7. Convert these numbers. [5]
1. (126)10 = (?)2
2. (11011)2 = (?)10
3. (57)8 = (?)2
Perform following operations.
4. 1011 – 1001
5. 1110 + 1110
8. State the Demorgan’s theorem and verify it. [5].
9. What are logic gates? Construct the truth table of NOR operation. [5]
10. Write short notes on (any two) : [5]
- IDE 2. SCSI 3. Wave Camera
11. What are uses of internet ? Write any five search engine name. [5]
12. Differentiate between System Software and Application Software with examples. [5]
13. What are DPT features in MS-Words? Write three features of Presentation Packages. [2 + 3]
14. Write an algorithm and flowchart to print the word “Hello” ten times using “while loop” [5]
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