Correct Answer - Option 4 : 17
The correct answer is "option 4".
CALCULATION:
Address type - Byte Addressable
Total no. of RAM Chips = 6 x 4 = 24 chips
Number of bits needed = ⌈ log224 ⌉ = 5 bits
Size of RAM chips 8K × 4 = 23 x 210 x 22 =215 bits
Number of bits needed = ⌈ log2215⌉ = 15 bits
Total number of bits = 12 + 5 bits = 17 bits