Which registers can interact with the secondary storage?
Question
Which registers can interact with the secondary storage?
Solution 1
In a computer system, the registers that can interact with the secondary storage are mainly the Memory Address Register (MAR) and the Memory Buffer Register (MBR).
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Memory Address Register (MAR): This register holds the address of the location in memory where data is to be fetched from or stored into. When the CPU needs to access secondary storage, it will place the address of the required block of data in the MAR.
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Memory Buffer Register (MBR): Also known as the Memory Data Register (MDR), this register holds the actual data being transferred. When reading from secondary storage, the data is first loaded into the MBR before being used by the CPU. When writing to secondary storage, the data to be written is stored in the MBR until it can be written to the storage device.
These registers work together to facilitate the interaction between the CPU and the secondary storage. The process is managed by the control unit of the CPU, which sends control signals to coordinate the data transfer.
Solution 2
In a computer system, the registers that can interact with the secondary storage are mainly the Memory Address Register (MAR) and the Memory Buffer Register (MBR).
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Memory Address Register (MAR): This register holds the address of the location in memory where data is to be fetched from or stored into. When the CPU needs to access secondary storage, it will place the address of the required block of data in the MAR.
-
Memory Buffer Register (MBR): Also known as the Memory Data Register (MDR), this register holds the actual data being transferred. When reading from secondary storage, the data is first loaded into the MBR before being used by the CPU. When writing to secondary storage, the data to be written is stored in the MBR until it can be written to the storage device.
These registers work together to facilitate the interaction between the CPU and the secondary storage. The process is managed by the control unit of the CPU, which sends control signals to coordinate the data transfer.
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