This document discusses the history and concepts of educational technology and information and communication technology (ICT). It defines technology as tools, equipment, and processes used to perform tasks efficiently. Educational technology refers to selecting, developing, managing and using appropriate technological processes and resources for teaching and learning. The document outlines five domains of technology: design, development, utilization, evaluation, and management. It then discusses the history of technology from the Stone Age through modern periods, and five stages of educational technology development. Finally, it addresses the history of ICT in education through five phases of computer use from the 1970s to present.