How to design 4 bit BCD Adder visualized by 7 segment display Tutorial 01

A BCD adder is a circuit that adds two BCD digits and produces a sum digit also in BCD. BCD numbers use 10 digits, 0 to 9 which are represented in the binary form 0 0 0 0 to 1 0 0 1, i.e. each BCD digit is represented as a 4-bit binary number. ****************************************************************** 4 bit BCD Subtractor : https://youtu.be/z6HFYyQv4Es -------------------------------------------------------------------------------------------------------- 4 to 1 multiplexer : https://youtu.be/2QExUjO4GdQ -------------------------------------------------------------------------------------------------------- Bcd Multiplier : https://youtu.be/bqxe9Y1LA8c -------------------------------------------------------------------------------------------------------- Magnitude cooperator : https://youtu.be/lRfz-NU9K6Q -------------------------------------------------------------------------------------------------------- Audio Source: Navajo Night by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Artist: http://audionautix.com/