Instructional engineering, broadly speaking, has passed through five stages.
The first period of instructional engineering is along with the utilization of helps like charts, routes, designs, designs, specimens and concrete materials. The term academic technology was applied as synonyms to audio-visual aids.
The second point of instructional engineering is connected with the ‘digital revolution’ with the introduction and establishment of sophisticated equipment and software. Utilization of numerous audio-visual aids like projector, magic lanterns, tape-recorder, radio and tv produced a progressive modify in the instructional scenario. Appropriately, academic technology concept was taken with regards to these innovative instruments and gadgets for powerful demonstration of instructional materials.
The next point of instructional technology is related to the development of mass press which in turn resulted in ‘communication revolution’ for educational purposes. Computer-assisted Instruction (CAI) used for training since 1950s also became common during this era.
The next stage of academic engineering is visible by the individualized means of instruction. The invention of developed understanding and set training presented a new dimension to academic technology. Something of self-learning predicated on self-instructional products and teaching machines emerged.
The most recent notion of academic technology is affected by the thought of process design or system approach which focuses on language labs, training machines, programmed instruction, media technologies and the utilization of the pc in instruction. In accordance with it, academic engineering is a systematic means of developing, carrying out and assessing the full total procedure for training and learning in terms of particular objectives based on research.