Definition of instructional technology

 Instructional technology is a widely used and constantly changing term in education, so there is no single definition of it but from my studying and reading I can define it as a systematic application of scientific knowledge to the practical tasks. In other words instructional technology is a whole process of designing, implementing and evaluating learning activities by using physical materials such as  computers, CD Roms, interactive media, modems, satellites, teleconferencing and other technological media and take  into account all the human resources and educational level of students  in order to improve and support learning process.