It is desired to have a 64 x 8 memory.
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It is desired to have a 64 x 8 memory. The memories available are of 16 x 4 size. The number of memories required will be:
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Answer: A. A) 8
Capacity scaling: (64 * 8) / (16 * 4) = (64/16) * (8/4) = 4 * 2 = 8 memory chips.
Step-by-step Derivation:
Step 1: Address expansion: 64 / 16 = 4 rows of chips.
Step 2: Word length expansion: 8 / 4 = 2 columns of chips.
Step 3: Total chips required = 4 * 2 = 8.