B$)$ A computer system needs $2$K bytes of RAM and $2$K bytes of

ROM. The size $($words x bits$/$word$)$ of RAM and ROM chips are $256$

$\backslash$times $8$ and $512\backslash$times $8,$ respectively. Determine the number of RAM and

ROM chips and find the address range for all. Design the interface

of all the chips with CPU also.