Question: Part A: Converting a 4 - bit binary number to a BCD number. Binary - Coded - Decimal ( BCD ) is used to represent

Part A: Converting a 4-bit binary number to a BCD number. Binary-Coded-Decimal (BCD) is used to represent a decimal digit from 0 to 9. Since digits 8 and 9 are a 4-bit numbers, therefore, a BCD is a type of 8421 code. The problem in converting an 8421 to a BCD code arose when a 4-bit binary number of 8421 code represents any decimal digit greater than 9(the non-BCD numbers).

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