Question: 1). One large modern computer has a 48-bit memory address register. How much memory can this computer address? 2) (a) Why are there two different

1). One large modern computer has a 48-bit memory address register. How much memory can this computer address?

2) (a) Why are there two different registers (MAR and MDR) associated with memory? (b) What are the equivalents in the Little Man Computer?

3) Most modern computers provide a large number of general-purpose registers and very few memory access instructions. Most instructions use these registers to hold data instead of memory. What are the advantages to such an architecture?

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