Technology and innovation have revolutionized our world, from ancient tools to modern AI. This unit explores key concepts like disruptive innovation, technological diffusion, and R&D, tracing the evolution of tech through major historical revolutions and breakthroughs. We examine the global impact of innovation on quality of life, economics, and culture. The unit also addresses challenges like privacy concerns, job displacement, and ethical dilemmas, while looking at future trends in AI, IoT, and sustainable tech.