$2$ U $.$ Convert the following binary numbers to equivalent octal numbers. $2$ U $.$ Convert the following binary numbers to equivalent octal numbers.

a$)(01010101{)}_2$

b$)(1001011010{)}_2$

c$)(1000011{)}_2$

d$)(011111100011{)}_2$

e$)(010101011100111{)}_{2}3$ U $.$ Convert the following octal and hex numbers to binary numbers.

a$)(2711{)}_8$

b$)(2$CAD${)}_{16}$

c$)(552612{)}_8$

d$)(BA2BD{)}_{16}4$ U $.$ Convert the following numbers to their decimal equivalents.

a$),(27431{)}_8$

b$),(476620{)}_{16}$

c$)(11011110{)}_{2}5$ U $.$ Obtain the decimal values for the following binary numbers expressed in a $2\text{'}$s complement representation

$($in each case the most significant bit is the sign bit$).$

a$.(1111110{)}_{RC}$

b$.(01111011111{)}_{RC}$

c$.(1000001011010{)}_{RC}$

a$)(01010101{)}_2$

b$)(1001011010{)}_2$

c$)(1000011{)}_2$

d$)(011111100011{)}_2$

e$)(010101011100111{)}_2$