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What is the full form of CMOS (the computer chip responsible for storing system settings)?

1. Complementary Memory Semiconductor
2. Complementary Metal-Oxide System
3. Complementary Metal-Oxide Semiconductor
4. Common Metal-Oxide Semiconductor

Correct answer: Complementary Metal-Oxide Semiconductor

Solution

CMOS = Complementary Metal-Oxide Semiconductor — a technology used in constructing ICs. The CMOS chip on a motherboard (powered by a battery) stores BIOS/UEFI settings like date, time, and hardware configuration.

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