Answer / Umesh Kumar Yadav

The design of a binary code converter from 8421 code (also known as BCD) to 2421 (Unipolar Code) involves the use of logic gates. Here's a simplified explanation:
1. Input: The 8421 code consists of four bits, where each bit represents a digit from 0 to 9 in Binary-Coded Decimal format. The output of this code is an unipolar voltage level (either high or low) representing the decimal value of the input.
2. Gates: To convert the 8421 code to 2421, the following logic gates are typically used: AND, OR, and NOT gates. The exact implementation depends on the specific design, but generally, multiple stages of gates are used to decode each digit of the input and generate the corresponding output.
3. Output: The output is a sequence of unipolar voltage levels representing the decimal value of the input in 2421 code.

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