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ISRO | ISRO CS 2017 – May | Question 18

  • Last Updated : 20 Mar, 2018

How many 128 × 8 bit RAMs are required to design 32 K × 32 bit RAM?
(A) 512
(B) 1024
(C) 128
(D) 32


Answer: (B)

Explanation: We need 32 K x 32 bits, i.e., 32 x 1024 x 32 bits.
We have RAM chips of capacity 128 x 8 bits
(32 * 1024 *32)/(128 * 8) = 1024
So, option (B) is correct.

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