(b) Design a comparator that accepts two 2-bit numbers A = {ai, ao and B = { bi, bo } to produce three outputs: LT (A less than B), EQ (A equals B) and GT (A greater than B). Both A and B are unsigned binary numbers. (1) Fill in Table Q.1b. (4 marks) Table Q.1b LT EQ GT alaobibo 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 (11) Implement the LT circuit using a 8-to-1 muxes and suitable gates. (4 marks) (iii) Implement the complete comparator circuit using a 4-to-16 decoder and suitable gates. (4 marks) 2 SKEE 2263 (1) Construct the truth table for the circuit in Fig. Q.1. Q.1 (a) (4 marks) 2 to 4 decoder YO Yi Y2 Yg A5 B 5. (LSE) DO D. D D, D. D, D. B Sto 1 F(A,B,C) MUX 2 to 4 decoder Yol Y Y2 Y C S S. (LSE) B B S, S. So Fig. Q.1 (ii) Write the function F(A,B,C) realized by the circuit in Fig. Q.1 in sum of product (SOP) form. (4 marks)