Question $6.$

Design combinational circuit with $3$ inputs and $1$ output.

a$.$ The output is $1$ when the unsigned binary value of the input is less than $3,$ otherwise it is $0.$

b$.$ The output is $1$ when the binary value is even, otherwise it is $0.$

Question $7.$

$[10$ marks$]$

Design a combinational circuit with $3$ inputs $\{x,Y,Z\}$ and $3$ outputs $\{A,B,C\}.$ When the unsigned binary value of

the inputs is $0,1,2$ or $3,$ the binary output is one greater than the input value. When the unsigned binary value of

the inputs is $4,5,6$ or $7,$ the binary output is $2$ less than the input value.