Computer Architecture Questions Medium
The system bus in a computer system serves as a communication pathway that allows different components of the computer to exchange data and instructions. It is responsible for transferring information between the central processing unit (CPU), memory, and input/output (I/O) devices.
The main purpose of the system bus is to facilitate the flow of data and control signals between these components. It provides a means for the CPU to access and retrieve data from memory, as well as send instructions to the memory for storage. Additionally, the system bus enables the CPU to communicate with various I/O devices, such as keyboards, mice, printers, and storage devices.
The system bus consists of multiple lines or wires that carry different types of signals. These signals include address lines, data lines, and control lines. The address lines are used to specify the memory location or I/O device being accessed, while the data lines carry the actual data being transferred. The control lines handle various control signals, such as read and write signals, interrupt signals, and clock signals.
Overall, the system bus plays a crucial role in ensuring efficient and effective communication between the different components of a computer system. It allows for the seamless transfer of data and instructions, enabling the computer to perform tasks and execute programs.