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Q. Show Arithmetic Subtraction?
The subtraction can be done easily using 2's complement by taking 2's complement of value which is to be subtracted (inclusive of sign bit) and then adding both numbers.
Signed 2's complement gives a very simple way for subtracting and adding two numbers. So many computers (inclusive IBM PC) accept signed 2's complement notation. The reason why signed 2's complement has a preference over signed 1's complement is since it has just one representation for zero.
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