In: Computer Science
**Complete for display digits 0 and 7 only**
A combinational circuit is used to control a seven-segment display of decimal digits, as shown in Figure 11.35. The circuit has four inputs, which provide the four-bit code used in packed decimal representation (010 = 0000,c, 910 = 1001). The seven outputs define which segments will be activated to display a given decimal digit. Note that some combinations of inputs and outputs are not needed. a. Develop a truth table for this circuit. b. Express the truth table in SOP form. c. Express the truth table in POS form. d. Provide a simplified expression.