Digital Electronics
Which of the following notations have two representations of zero? (I) 1’s complement with radix of number being 2 (II) 7’s complement with radix of number being 8 (III) 9’s complement with radix of number being 10 (IV) 10’s complement with radix of number being 10 Select the correct answer using the codes given below:

 (I) & (III)
 (I), (II) & (III)
 (I), (II) & (IV)
 (II), (III) & (IV)

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Digital Electronics
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?

Two’s complement only
Two’s complement and one’s complement only
All three representations
Sign and magnitude and one’s complement only

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