a) A memory IC has 16-bits (A0 to A15) used for the address lines. What is the number of addresses, in decimal, that can be used by the IC? 

Question

b) A computer is described as having 256 megabytes of RAM. Which one of the following is the correct memory size in decimal?
i) 256 x 10^6 bytes;

ii) 2^28 bytes.

Give reasons for your choice.

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