Subject

    Computer Science

    Topic

    Computer Hardware

    Which memory type is volatile and holds the active working set for the CPU?

    ক)
    DRAM (main memory)
    খ)
    SSD (NAND)
    গ)
    HDD platters
    ঘ)
    Optical disc

    Explanation

    Dynamic RAM stores bits as capacitor charge that leaks and must be refreshed. It is fast and volatile, so data vanishes on power loss. The CPU fetches code and data through caches from DRAM. Non-volatile media like SSD/HDD persist data but are slower.

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