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

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Digital Electronics
ASCII

 is used only in western countries
 is a subset of 8-bit EBCDIC
 is version II of the ASC standard
 has 128 characters including control characters

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