ABSTRACT
In this section we shall be concerned with the study of combinational components. Consider, for example, a
circuit (the adder) designed to compute the sum of two integers represented in binary (Figure 3.1). The adder has
two sets of input lines, one for each of the two operands A and B and one set of output lines for the sum. Each set
of lines (input and output) consists of as many wires as there are bits in the number it is designed to carry.
