Subject

    Computer Science

    Topic

    Computer Hardware

    Which logic family dominates modern CPUs for energy efficiency and density?

    ক)
    NMOS only
    খ)
    TTL
    গ)
    CMOS
    ঘ)
    ECL

    Explanation

    Complementary MOS uses paired p- and n-transistors so static current is near zero (except leakage). That yields high density and low dynamic power per switch. ECL is fast but power hungry; TTL is legacy. CMOS scaling underpins Moore’s Law era improvements.

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