Convert the following decimal numbers to $8-$bit two's complement binary numbers and subtract them. What is the result of subtraction?

$-{28}_{10}-3_{10}$

${11100001}_2$

${00001110}_2$

${00010110}_2$

${00000100}_2$

Question $5$

A $8M8$ SRAM provides $8M$ entries, each of which is $8$ bits wide. Thus it will have

address lines

$20$

$21$

$22$

$23$

Question $6$