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HSEB || Model question of Computer Science Class 11 (Grade XI)

Unit: 4 Logic Function and Boolean Algebra

1. What is Boolean logic? Describe the AND, OR, XOR logic gates with truth table and logic symbols. [4+6]
2. Define Boolean Algebra. Explain AND, OR, NAND and Ex-OR gate with truth table and logic gate. [2+8]
3. Describe any five logic gates with Truth Table and gate symbol. [10]
4. Define logic gate? Explain the types of gates with truth table [2+8]
5. Describe any five logic gates with truth table and gate symbol. [10]
6. What is logic gate? Describe any four logic gate with Truth Table [2+8]

1. Describe the Demorgan’s Law. [5]
2. Give the truth table and logical symbols of AND, OR and NOT gates of Boolean algebra. [2+2+1]
3. Differentiate between NAND and NOR gate with truth table. [5]
4. What is Boolean algebra? Differentiate between NAND and NOR gate with and example. [2+3]
5. What are the logic gates? Explain the NAND gate with truth table. [2+3]
6. What are logic gates? Differentiate between “NAND” and “NOR” gate with truth table. [2+3]
7. Construct the truth table of XOR and XNOR operations of Boolean algebra. [2.5+2.5]
8. Define a NOR gate and draw its logic symbol. [5]
9. Construct truth table for NAND operation. [5]
10. Write truth table for NOR operation of Boolean algebra. [5]
11. Construct the truth table of the AND & OR operations of Boolean algebra. [5]
12. Define Boolean functions. Construct truth table for AND operation of Boolean algebra. [5]

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Unit-5 Computer Systems

1. Define computer Architecture with block diagram. Describe the function of memory and processing unit of computer system. [4+6]
2. What is memory? Explain different types of memory present in the computer system with their uses. [2+8]
3. Define the terms ‘computer architecture’ and ‘computer organization’. Explain the different units of computer system with suitable block diagram. [2+8]
4. What is memory? Describe the different types of memory present in the computer system. [2+8]
5. Explain the computer system with block diagram. [10]
6. What is language processor? Differentiate between compiler and interpreter with examples. [2+8]
7. What is computer system? Explain the computer system with block diagram. [2+8]
8. What is computer architecture? Describe different units of computer system. [2+8]
9. Describe different types of language processors with examples. [10]
10. What is memory? Describe the types of memory. [2+8]
11. What is CPU? Explain the major units of CPU. [2+8]
12. Describe the major units of computer system with logical diagram. [10]
13. What is computer architecture and computer organization? Describe the different units of computer system. [2+8]
14. What is an application program? List the major features of application program. [1+4]
15. What is computer system? Explain the major units of computer system. [2+8]
16. What is memory in the computer system? Explain primary and secondary memory. [2+8]
17. Define memory. Explain the types of memory in details. [2+8]
18. Define computer architecture? Draw a block diagram of computer system along with logical connections. Explain each block in detail. [5+7.5]
19. Define software. Explain the different types of software in detail. [1+4]
20. What is memory? Differentiate between primary and secondary memory. Why hard disk is popular than floppy disk? Explain. [2.5+2.5]

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