Examples of weighted and non weighted codes?

Answer 1

weighted code-8421 (BCD) binary, hex, octal ETC.

non-weighted code-grey codes, excess-3 etc.

Answer 2

Weighted codes assign different significance to each digit in a number representation, such as 8421 BCD code assigns weights of 8, 4, 2, and 1 respectively to each bit. In contrast, non-weighted codes like Gray code do not follow a positional weight pattern, where only one bit changes at a time when moving from one value to another to reduce errors in analog-to-digital conversion systems.