The word technology comes from two Greek words, transliterated techne and logos. In physics , the discovery of nuclear fission has led to both nuclear weapons and nuclear power Computers were also invented and later miniaturized utilizing transistors and integrated circuits Information technology subsequently led to the creation of the Internet , which ushered in the current Information Age Humans have also been able to explore space with satellites (later used for telecommunication ) and in manned missions going all the way to the moon.
Therefore, educational technology is based on theoretical knowledge drawn from different disciplines (communication, education, psychology, sociology, philosophy, artificial intelligence, computer science, etc.) plus experiential knowledge drawn from educational practice.
The field of instructional design and technology encompasses the analysis of learning and performance problems, and the design, development, implementation, evaluation and management of instructional and non-instructional processes and resources intended to improved learning and performance in a variety of settings, particularly educational institutions and the workplace.
Green technology helps to reduce adverse effects on the environment as well as improving productivity, efficiency and operational performance of the technology term should be differentiated from cleantech, although often used interchangeably, since cleantech generally refers to the emerging financial industry.
If educational technology is concerned with thinking carefully about teaching and learning, then a computer has a contribution to make irrespective of its use as a means of implementation, for the design of computer-based learning environments gives us a new perspective on the nature of teaching and learning and indeed on general educational objectives.