The document discusses computer system buses and their role in connecting different components of a computer system. It describes the functions of common types of buses like data, address, and control buses. It also explains bus arbitration and timing, interrupt handling, and examples of specific bus architectures like PCI buses. Buses provide a communication pathway that allows the central processing unit (CPU) to transmit data and control signals to other devices like memory and input/output components.

1. William Stallings Computer Organization and Architecture Chapter 3 System Buses

6. Computer Components: Top Level View

10. Example of Program Execution

11. Instruction Cycle - State Diagram

13. Program Flow Control

15. Instruction Cycle (with Interrupts) - State Diagram

17. Multiple Interrupts - Sequential

18. Multiple Interrupts - Nested

29. Bus Interconnection Scheme

32. Traditional (ISA) (with cache)

33. High Performance Bus

39. Synchronous Timing Diagram

40. Asynchronous Timing Diagram

45. PCI Read Timing Diagram

46. PCI Bus Arbitration