A microcomputer system with a $16-$bit address bus and a $8-$bit data bus uses memory$-$

mapped I$/$O$.$ It has $1KB$ of ROM starting at address $0000H$ constructed using $648p$;$512$

bytes of RAM starting at address $0700H$ constructed using $1284$ chips; a bidirectional I$/$O

device at addresses $0600H$

a$.$ What is the total size of the memory subsystem?

b$.$ How many ROM chips are needed?

c$.$ How many RAM chips are needed?

d$.$ Address lines that select the ROM chip?

e$.$ Address lines that select the RAM chip?

f$.$ Draw the enable logic design for the I$/$O svstem $($label properly including control

needed control signals.$)$

g$.$ Draw the ROM design $($label properly including control needed control signals.$)$

h$.$ Draw the RAM Design $($label properly including control needed control signals.$)$