This document provides an overview of the history and definition of education technology. It discusses how education technology began with the use of films, radio, and television for instructional purposes. The development of microcomputers in the 1980s allowed digitized communication and networking to start in education. Today, common technologies used in classrooms include things like CD-ROMs, word processors, graphing calculators, and communication tools to enhance learning. Distance education has also benefited from technology allowing students to participate in classes anywhere.