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  1. When signed numbers are used in binary arithmetic, then which of the following notations would have unique representation for zero?
    1. Sign-magnitude
    2. 1’s complement
    3. 2’s complement
    4. 9’s complement
Correct Option: C

In sign-magnitude, 1’ s complement, + 0 and – 0 represented differently but in 2’s complement there is single notation for zero.



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