1. Meaning of carry bit

2. Addition and subtraction of unsigned numbers

3. Addition and subtraction of twos complement numbers

4. Addition and subtraction of ones complement numbers

5. Advantages of sign magnitude

6. Advantages of twos complement

7. Advantages of ones complement

8. Discuss examples when adding twos complement numbers and when it

leads to overflow

9. Discuss subtraction overflow in twos complement

10. Discuss sign extension and show ex