'Unsigned can hold a larger positive value, and no negative value. Unsigned uses the leading bit as a part of the value, while the signed version uses the left-most-bit to identify if the number is positive or negative. Signed integers can hold both positive and negative numbers.'
Do you study computing at A-level at all? In my Computing course we learn two ways to give a binary integer a sign; 2's compliment and sign and magnitude. I'm not sure if there are more standard ways (I'm not at uni yet!), but these are two methods I know that are used to represent negative and positive numbers in binary.
How do I convert numbers to signed 8-bit binary? Will the value be the same, if it was signed or unsigned?
For example, I've got the number 22 as 00010110, but that's in unsigned 8-bit binary, would it be the same for signed 8-bit binary?
That would be the same since it is not negative. If it was a negative number we use the eighth bit as a sign. We set it to 1 for negative and 0 for positive. The number is then written normally. As you can imagine this reduces the number of numbers we can represent since we waste the eighth bit as a sign.
That would be the same since it is not negative. If it was a negative number we use the eighth bit as a sign. We set it to 1 for negative and 0 for positive. The number is then written normally. As you can imagine this reduces the number of numbers we can represent since we waste the eighth bit as a sign.
'Unsigned can hold a larger positive value, and no negative value. Unsigned uses the leading bit as a part of the value, while the signed version uses the left-most-bit to identify if the number is positive or negative. Signed integers can hold both positive and negative numbers.'
Do you study computing at A-level at all? In my Computing course we learn two ways to give a binary integer a sign; 2's compliment and sign and magnitude. I'm not sure if there are more standard ways (I'm not at uni yet!), but these are two methods I know that are used to represent negative and positive numbers in binary.
Thank you
I never did it at A-level, but I'm doing it at university now.