Q

Draw the $4-$bit binary parallel adder with overflow detection. Show the inputs and outputs of the circuit to compute $(74).($Hints: Draw the circuit only once and use A $=7,$ B$-4).$

Q#

Design a combinational circuit with three inputs x$,$ y$,$ z and three outputs

A$,$ B$,$ C$.$ When the binary input is $0,1,2,$ or $3,$ the binary output is one greater

than the input. When the binary input is $4,5,6,$ or $7,$ the binary output is

one less than the input.

Solve above question by $8$ x $1$ multiplexer and $3$ to $8$ Decoder with extra gates$\mathrm{.}1$