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The chapter covers the fetch and execute cycles crucial for how a processor retrieves and processes instructions. It explains the roles of essential registers like the program counter (PC), memory address register (MAR), and instruction register (IR) in coordinating these operations. Finally, the differences between read and write operations, as well as control signals generated by the control unit, are discussed in detail.
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References
ch4 part c.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: Fetch Cycle
Definition: The process by which a processor retrieves an instruction from memory using the address provided by the program counter.
Term: Program Counter (PC)
Definition: A special-purpose register that holds the memory address of the next instruction to be executed by the processor.
Term: Read and Write Operations
Definition: Actions performed by the processor to either fetch data from memory (read) or send data to memory (write), facilitated through the MAR and MBR.
Term: Control Unit
Definition: A component within the processor responsible for generating control signals that dictate the operation of other components during instruction execution.