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MCQ Practice Question

Four identical 1K × 8 memory ICs are combined to create a 4K × 8 memory. How many additional high-order address bits are required for chip selection?

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Correct Answer: B. 2

Explanation: Selecting one of four chips requires log2(4)=2 selection bits. The lower 10 address bits address locations within each 1K chip.

Reference: Standard digital electronics: memory expansion

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