Join the IDNLearn.com community and get your questions answered by knowledgeable individuals. Ask your questions and get detailed, reliable answers from our community of experienced experts.

4. A circuit is designed for binary coded decimal input processing. This means that four bits are used for input but only ten of the possible sixteen input combinations are used. (There are six don't cares which can be selected as desired). The circuit output is a 1 whenever there are three or more inputs at Logic-0. Make a choice of don't cares and find the minimum circuit by using a Karnaugh map.