Q$1.[5$x$4=20$ points$]$ Perform the following binary calculations. Each number is an $8-$

bit signed integer with $2\text{'}$s complement representation. Give your answer in $8-$bit $2\text{'}$s

complement format and clearly state whether an overflow happens or not. $($Note: $(1)$ your

answer MUST BE $8-$bit number. Deduction will be given for other type of representations. $(2)$ If

there is no overflow, you need to clearly state that an overflow does not happen$)$

Please explain how to do each problem Step by step as i am confused on how to do them.

a$.{11000111}_2+{01001011}_2$

b$.{11000111}_2+{10011001}_2$

c$.{0011011}_2-{11000011}_2$

d$.{10001000}_2-{10000000}_2$