Please show the steps. $1.$Convert $(64$DF$)16$ to octal. $2.$Convert $(937)10$ to Binary$-$Coded Decimal $($BCD$)(10$ points$)$ The following is a string of ASCII characters whose bit patterns have been converted into

hexadecimal for compactness: B$4$ E$45$A B$163$ F$665$ F$5.$ Of the eight bits in each pair of digits, the leftmost

is a parity bit. The remaining bits are the ASCII code.

$($a$)$ Convert the string to binary code.

$($b$)$ Show the English letters and numbers $($based on the ASCII code$)$ that to the $(15$ points$)$ Perform the arithmetic operations on the following binary numbers assuming they are based on

$8-$bit representation and $2\text{'}$s complement. You are only allowed to perform add operations. All negative

numbers should be handled using $2\text{'}$s complement.

$($a$)00111010-00010110$

$($b$)00001001-11100101$

$($c$)11100101-00001001$

code. Note that you need to remove the parity bits.

$($c$)$ Determine the parity used: odd or even? $($show your work$)$