Signed vs Unsigned Numbers

In computing, signedness is a property of data types representing numbers in computer programs. (Wiki, 2021)
Unsigned means that a variable can represent only 0 and positive numbers.
Signed means that a variable can represent both negative and positive numbers.
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References:
Signedness. (2021, August 06). Retrieved September 28, 2021, from https://en.wikipedia.org/wiki/Signedness​
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