DISCUSSIONS: 1. The difference D between inputs A and B of a half subtractor is: a. AB b. АB с. А. В 2. Half-subtractor is simply a half-adder with. a. INVERTER gate b. AND gate c. XOR gate 3. What...

Extracted text: DISCUSSIONS: 1. The difference D between inputs A and B of a half subtractor is: a. AB b. АB с. А. В 2. Half-subtractor is simply a half-adder with. a. INVERTER gate b. AND gate c. XOR gate 3. What can be constructed with one XOR and one AND gate? a. Full-subtractor b. Half-adder c. Full-adder 4. F.A. is the abbreviation for a. Half-subtractor b. Full-adder c. Full-subtractor. 5. IF S-A OB,C AxB for a half-adder, S could be expressed as. a. S-AB+AB b. S-AB+AB c. S-AB+AB 6. What is the final sum (S) and carry (C) for a F.A. if both inputs A and B e equal to 'l' and the previous carry is 'l'? a. C-1, S-1 b. C-0, S-1 c. C-1, S-0 7. Which of the following equations is true for inputs A, B, sum S and carry C? a. S-A@B, C-А.В b. S-A+B,C-A.B с. S-A@B, С-А.В