To the best of your ability, calculate the minimal number of bits required in the MAR for each of the following memory sizes. What is the real number of memory cells in a 640 KB memory unit that is...

To the best of your ability, calculate the minimal number of bits required in the MAR for each of the following memory sizes.

What is the real number of memory cells in a 640 KB memory unit that is claimed to have 640 KB? What do you think about 512 MB of RAM? What do you think about 2 GB of RAM?

Explain the role that read-only memory (ROM) plays in the architecture of a computer system and why it is used. What kind of information is stored in read-only memory (ROM), and how does that information get into the memory in the first place?