$1.$ We have a $16$Gx$32$ word addressable memory built from $8$Gx$4$ RAM chips. Memory uses low$-$order interleave. NOTE: $16$Gx$32$ means $16$G of words, each word is $32$ bits.

a$.$ How many RAM chips are needed to make up memory?

b$.$ How many banks does memory have?

c$.$ How many bits are needed for a memory address?

d$.$ Of those bits from part c$,$ which are used for the bank select, and which are used for the address in the bank?