Grade 11 Computer Science Model Question (Management)

  Group ‘A’

Select the best alternative and write in your answer sheet: [4 x 1 = 4]

1. The main component of the 5^th generation of computer is:

i) Transistor ii) AI iii) IC iv) None

2. What is the value of (0.62)₈ into binary?

i) (0.110101)₂ ii) (0.110010)₂ iii) (0.101100)₂ iv) (0.110001)₂

3. One KiloByte is equal to:

i) 1000 bytes ii) 1024 bytes iii) 2000 bytes iv) 2020 bytes

4. Which gate is called the Universal gate?

i) NOR ii) NAND iii) AND iv) Both (A) & (B)

Group ‘B’

5. What is a logic gate? Explain OR and NAND gate with logic function,diagram, truth table and venn diagram.   (4)

6. What is a computer? Explain any four applications of computers. (4)

7. Define the binary number system and convert (BC.2C)₁₆ into (?₎₈                     (4)

8. What is 1’s complement? Subtract (11100-1001) using 1’s complement and 2’s complement method.   (4)