Two's complement significance

[Sridevi Shrikanth]

What is the significance of representing number in two's complement?

[Steve Fahlbusch]

It allows for all bits to be represented while eliminating the embarrassing problem of having a positive and negative zero.
for example: an 8 bit number allows values of -128 to 127.

[This message has been edited by Steve Fahlbusch (edited January 23, 2001).]

[Madhav Lakkapragada]

Steve is correct.
For more discussion on this please refer to a past
discussion and also a discussion on Signed and Unsigned numbers - which elaborates the discussion.
regds.
- satya