7. The BCD to 7-segment decoder performs a common function: it converts the binary representation of a decimal digit, 0000 to 1001, to the signals needed to show the digit on a 7- segment LED display. The 7-segments are labeled with letters a through g as in the figure below 0 123456 189 Draw the truth table showing combinations of four inputs: W, X, Y, and Z along with the values for each segment. Design for segments: (a) Karnaugh maps, and (b) the circuits to implement segments a through g. Show the Karnaugh maps and circuit simplifications along with the circuit drawing in Microsoft Word document and then implement the circuits in Logisim using 7-segment display output component