Today, we live in the cyber world where everything is digital, and data is king. The world, using digital technologies, is gradually being transformed into a place where everything will be controlled, monitored, and analyzed digitally. This development has led to digital education, digital business, digital home, digital medicine, digital ethics, digital food, digital family, digital government, digital homes, and digital everything. Digital technology is the future, but some individuals and countries are left behind. Digital technologies include artificial intelligence, machine learning, big data, the Internet of things, cloud computing, augmented reality, robotics, sensors, 3D printing, ubiquitous connectivity, digital twins, nanotechnology, email, file sharing, mobile phones, online gaming, e-commerce, GPS systems, and blockchain. These technologies are dramatically transforming everything. This book is volume one of a set of three volumes. This book is intended to present digital technologies and their applications in a manner that is clear, interesting, and easy to understand.