Multiple choice

Excess-3 code is

  1. non-weighted code

  2. weighted code

  3. self-complementing code

  4. both (1) and (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Excess-3 code is a non-weighted code (each bit position doesn't have a fixed weight value) and it is self-complementing (the 9's complement is obtained by complementing each bit). Therefore it is both non-weighted and self-complementing. A weighted code assigns fixed weights to each bit position.

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