D$\mathrm{.}1)$ Repeat question $4\mathrm{.}9$ assuming that the physical memory word size is $32$ bits.

How many $256\backslash$times $8$ RAM chips are needed to provide a memory capacity of $4096$ X $32$

bits?

a$)$ How many bits will each address contain?

b$)$ How many address lines must go to each chip?

c$)$ How many address lines must be decoded for the chip select inputs? Specify the size

of the decoder.