System Buses

What is System Buses?

System buses are the sets of parallel wires that carry information between the CPU, memory and input/output units, comprising the address bus carrying memory addresses one way, the data bus carrying data and instructions both ways, and the control bus carrying timing and command signals.

This definition is part of the Hardware chapter in Cambridge O Level Computer Science.

Concepts related to System Buses

• address bus
• data bus
• control bus
• Von Neumann Architecture