What is the difference between binary adder and bcd adder?

A binary adder is designed to perform the addition of binary numbers, handling input directly as binary digits (0s and 1s) and producing a binary output. In contrast, a BCD (Binary-Coded Decimal) adder specifically adds decimal digits that are represented in binary form, typically requiring adjustments if the sum exceeds 9 (1001 in binary), often involving an additional correction step. While both types of adders operate on binary data, the BCD adder includes logic to ensure valid decimal representation in its results.