How many 128 × 8 bit RAMs are required to design 32 K × 32 bit RAM?

2017

Answer: B. 1024 — Calculate total memory capacity required: 32 K × 32 bits = (32 × 1024) × 32 = 1,048,576 bits. Calculate capacity of one chip: 128 × 8 = 1,024 bits. Divide…

A.
512
B.
1024
C.
128
D.
32

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Correct answer: B

Calculate total memory capacity required: 32 K × 32 bits = (32 × 1024) × 32 = 1,048,576 bits. Calculate capacity of one chip: 128 × 8 = 1,024 bits. Divide total capacity by chip capacity: 1,048,576 / 1,024 = 1024 chips.

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