>>26
The thing is is that there are many contexts for the number zero, '0', +0.0, -0.0, and then there are also different representations of zero based upon what the cpu is using for integer arithmetic. It could be unsigned, or signed using 2's compliment, in which case a zero value would be binary zero. Or it could be signed magnitude, where one bit is reserved to represent sign and the rest of the bits represent the absolute value of the number. In this case, there is both a negative and a positive version of zero, both having distinct representations in binary. It is good to establish which zero you are talking about, like a block of all zeroed bits, to avoid ambiguity.