Model Question for Computer Science Class 11



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. (a) What is an operating system ? Explain any three function of an operating system. [1 + 6]
(b) The “WiMP” environment is much more user-friendly, why ?
            OR
(a)    What is cell addressing and explain different types of cell addressing used in spreadsheet. [5]
(b)   Write a tag to design your personal web page to link photo family, background and banner page using frame. [5]
  1. (a) Define flowchart and pseudocode. Explain their significance in programming. [5]
      (b) 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]
  1. Classify the computers according to their generation based on the technology used. [5]
  2. Differentiate between analogue and digital computer, explain with examples. [5]
  3. What do you mean by number system? Why do digital computers use binary numbers for their operation ? [2 + 3]
  4. Convert these numbers. [5]
(a)    (126)10 = (?)2
(b)   (11011)= (?)10
(c)    (57)8 = (?)2
                   Perform following operations.
(d)   1011 – 1001
(e)    1110 + 1110
  1. State the Demorgan’s theorem and verify it. [5]
  2. What are logic gates? Construct the truth table of NOR operation. [5]
  3. Write short notes on (any two) : [5]
(a) IDE      (b) SCSI     (c) Wave Camera
  1. What are uses of internet ? Write any five search engine name. [5]
  2. Differentiate between System Software and Application Software with examples. [5]
  3. What are DPT features in MS-Words? Write three features of Presentation Packages. [2 + 3]
  4. Write an algorithm and flowchart to print the word “Hello” ten times using “while loop” [5]