c) An adder is a digital logic circuit in electronics that implements addition of numbers. In many computers and other types of processors, adders are used to calculate addresses, similar operations and table indices in the ALU and also in other parts of the processors 1) Describe and illustrate the difference between a half adder and a full adder. (11) Implement a full adder circuit as you have described in (1) using a 4 x 1 multiplexer