The initial stage of educational engineering is in conjunction with the usage of helps like charts, maps, representations, versions, specimens and cement materials. The word instructional technology was applied as synonyms to audio-visual aids.The next period of instructional technology is associated with the ‘digital revolution’ with the introduction and establishment of advanced hardware and application
.Utilization of numerous audio-visual aids like projector, miraculous lamps, write for us technology tape-recorder, radio and television brought a progressive change in the educational scenario. Accordingly, educational technology principle was taken when it comes to these superior devices and tools for efficient demonstration of educational materials.
The next point of educational engineering is connected with the progress of mass press which in turn resulted in ‘conversation revolution’ for instructional purposes. Computer-assisted Instruction (CAI) useful for education since 1950s also turned common in this era.
The next stage of academic engineering is real by the individualized procedure for instruction. The innovation of programmed learning and developed training presented a brand new dimension to instructional technology. Something of self-learning based on self-instructional products and training devices emerged.
The newest idea of academic technology is inspired by the idea of system design or system strategy which is targeted on language laboratories, training products, developed instruction, media technologies and the utilization of the computer in instruction. Based on it, instructional technology is an organized way of developing, carrying out and assessing the total process of teaching and understanding when it comes to specific objectives predicated on research.Educational engineering, despite the uncertainty of the origin of the definition of, can be followed back again to enough time of the three-age process periodization of human prehistory; particularly the Stone Age, the Bronze Age, and the Metal Age.