An in-depth exploration of combinational logic circuit design presented by Dr. G.S. Virdi, former Chief Scientist at CSIR-Central Electronics Engineering Research Institute, Pilani, India. This comprehensive lecture provides essential knowledge on the principles, design procedures, and practical applications of combinational circuits in digital systems. ## Key Topics: - Fundamental differences between combinational and sequential circuits - Combinational circuit design principles and implementation techniques - Detailed coverage of critical components including adders, subtractors, BCD adders, and magnitude comparators - Practical implementations of multiplexers/demultiplexers, encoders/decoders, and parity checkers - Code converters and BCD to 7-segment decoder designs - Logic gate interconnections for specific output requirements This educational resource is ideal for undergraduate and graduate engineering students, electronics professionals, and digital circuit designers seeking to enhance their understanding of combinational logic implementation. Dr. Virdi draws on his extensive research experience to provide clear explanations of complex digital electronics concepts. Perfect for classroom instruction, self-study, or professional development in electronic engineering, computer engineering, and related technical fields.