In a CPU based on the von Neumann architecture, registers are dedicated high-speed storage locations. State the two CPU registers that are specifically used to hold instructions (either the instruction currently being decoded or the instruction newly retrieved from memory) during the Fetch-Decode-Execute cycle.
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.