If the Last digit(LSB) of a 2s complement binary number is 0, what does that tell about the number? and If the last two digits of a 2s complement binary number are 00 (ex: the binary number 01100), what does that tell you about the number?

Describe what condition indicate overflow has occurred when two unsigned numbers are added.

Does the sum of a negative 2s complement number and a positive 2s complement number generate an overflow? If yes/no why? Justify your answer.