Compute the following operations: $(1$ point each$)$

$($a$)0110101111010101$

$($b$)0110101111010101$

$($c$)0110101111010101$

$($d$)01101011$

$($e$)011010115$

$($f$)011010112$

$($g$)01101011\backslash |11010101$

$($h$)3$a $||21$