"Computers: Information Processing" is a comprehensive work that explores the heart of computing: information processing. With a didactic approach, the book introduces the fundamentals of computer architecture, explaining how electronic devices are used to manipulate data and perform complex operations. From the history of the first computers to cutting-edge technologies, the book takes the reader on a fascinating journey, unraveling the basic principles of digital logic, data representation and the execution of algorithms. Using accessible language, the book introduces essential concepts, such as the central processing unit (CPU), memory, input and output devices, as well as addressing different processing models, such as parallel and distributed computing. Throughout the book, the reader will be introduced to the different generations of computers and their technological evolution, from valves and transistors to integrated circuits and cloud computing. The book also discusses the challenges faced in the quest for greater processing power, such as the heating of components and the need for energy efficiency.