Answer the following questions: in C$++$

$1-$ What does W represent when talking about memory?

$2-$ At minimum how many bits are needed in the MAR for each of the following memory sizes?

a$.256$ MB

b$.45$ KB

c$.98$ MB

d$.128$ KB

e$.2$ GB

f$.6$ GB

g$.16$ GB

h$.1$ TB

$3-$ How many memory cells are contained in $16$ GB of memory?

$4-$ What is a ROM? How is it different from RAM?

$5-$ In $2$D memory that has $8$GB $(8*230$ bytes$),$

a$.$ What are the dimensions?

b$.$ How large would the MAR be$?$

c$.$ How many bits are sent to each of the row and column decoders?

d$.$ How many output lines would each of the decoders have?

$6-$ Assume a $64-$bit MAR that is organized with $32$ bits for the row selector and $32$ bits for the column selector.

a$.$ What is the maximum size of the memory unit on this machine? Put your answer in terms of XB where X represents one of the byte units like G is Giga.

b$.$ What is the byte unit for $260?$

c$.$ What are the dimensions of the memory $($in bytes$)$ assuming a square $2$D organization?