Multiple choice

In which code, the successive code characters differ in only one bit position?

  1. Gray code

  2. Excess 3 code

  3. 8421 code

  4. Algebraic code
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A Correct answer
Explanation

Gray code is designed so that consecutive values differ by only one bit, minimizing errors during state transitions. Other codes like 8421 BCD can change multiple bits between consecutive values.

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