This book examines the underlying digital technologies required to build the new digital economy. It discusses basic concepts and elements of the technologies that make a digital economy possible, such as cloud and edge computing, 5G telecommunication, blockchain, big data, and how financial technology affects both old and new industries. The book serves as a comprehensive introduction and background to anyone who is interested in the subject in order to do further research on the individual subjects included here. Features, Discusses basic concepts and elements of the technologies that make a digital economy possible, such as cloud and edge computing, 5G telecommunication, blockchain, big data, AI, and more, Covers financial service industries and effects of financial technology on industry