Which type of bus carries control signals within the computer system?

The control bus is responsible for carrying control signals within a computer system. This bus is essential for coordinating and managing the actions of the various components within the computer. It transmits signals that dictate how data should be processed, such as read or write commands, and manages communication between the processor, memory, and input/output devices.

The function of the control bus is critical because it ensures that all components of the computer system work in unison. It orchestrates the timing and sequence of operations, enabling devices to understand when to act or when data is ready.

In contrast, the address bus is used to specify the memory addresses from which to read or write data, while the data bus is used for the actual transfer of data between components. The expansion bus serves a different purpose, allowing additional devices to be connected to the computer system but not directly involved in the control signals that guide operations within the system.