The CPU utilizes system buses to transmit data, instructions, and control signals between the CPU, memory, and other hardware components.
Complete the table by writing the correct bus (Address Bus, Data Bus, or Control Bus) for each role.
| Bus | Role |
|---|---|
| Carries physical addresses of memory locations to specify where data should be read from or written to. | |
| Carries synchronization, command, and timing signals (such as read/write requests and interrupts) from the Control Unit. | |
| Transports the actual data values or program instructions between the CPU registers and main memory. |
76 exam-style questions on Edexcel GCSE Computer Science Hardware, covering Von Neumann architecture and FDE cycle, Secondary storage devices, and Embedded systems. Each one has a worked solution and a mark scheme showing where the marks go.