Computer System: Important Questions

Digital Principles and Computer Organization:

Chapter 3: Computer System

Important Questions

1. Define the term CPU. Why is it called the brain of the computer?

2. Explain the structure of a computer with the help of a neat diagram.

3. Explain the main components of the CPU with a neat block diagram.

4. What are the functions of the Arithmetic and Logic Unit (ALU)?

5. State the role of the Control Unit (CU) in a computer.

6. What is the purpose of registers in the CPU? Give one example of a register.

7. Describe the function of the memory unit.

8. Explain different functional units of a digital computer.

9. What is a stored program concept? Explain the functional units of a stored program digital computer, along with a block diagram.

10. What is a system bus?

11. Explain the three types of system buses.

12. Explain why only two units can communicate at a time in a single bus structure.

13. What is the role of multiplexed address/data lines in a single bus structure, and why are latches required?

14. List two limitations of using a single bus structure in large computer systems.

15. Why do modern computer systems use multiple bus hierarchies instead of a single bus?

16. Explain the high–speed bus configuration.

17. Explain various types of computers in detail.

18. Draw and explain the Von Neumann architecture.

19. Draw Von Neumann architecture and explain function of registers in it. stab grilirw

20. Explain IAS (Von Neumann) architecture with the help of neat diagram and list the instructions supported by IAS computer.

21. Define Harvard architecture. How does it differ from Von Neumann architecture ?

22. Explain the role of separate instruction memory and data memory in the Harvard architecture. State two advantages and two disadvantages of the Harvard architecture.

23. Give a comparison between Harvard and Von Neumann architectures.

24. Explain the instruction cycle.

25. Draw the instruction cycle state diagram.

26. Explain the indirect cycle.

27. Explain the data flow during fetch and decode cycle.

28. Explain the data flow during indirect and interrupt cycle.

29. Explain instruction cycle states of a processor with suitable diagram.

30. What is performance?

31. Define response time and execution time.

32. What is user CPU time and system CPU time?

33. Explain the concept of relative performance with the help of example.

34. State the basic performance equation.

35. State the performance factors.

36. State the components that affects the factors in the CPU performance equation and reason behind it.

37. State the CPU performance equation and discuss the factors that affect performance.

38. Explain the important measures of the performance of a computer and derive the basic performance equation.

39. Define MIPS.

40. Define MFLOPS.

41. What is throughput?