The advent of formal learning needs to be seen through the prism of the growth of civilization. When the means were fewer and technology yet to reach the zenith that it is today, teaching aids were few and far in between. The blackboard and chalk were time tested aids and universally used. However, with quick developments in technology, the quality of teaching aids improved considerably.
The revolution in computers brought in a revolution in education both in quality and spectrum. The phase wherein teachers would interpolate their own knowledge with videos though very recent was revolutionary. The scope of learning grew exponentially. The graphic clarity in expression of thought resonated within the minds of learners as never before. The capacity of using computer aided imagery for micro and macro concepts in engineering and medicine captured the imagination of young minds. The scope for research broadened considerably by the Computer revolution was just the tip of the iceberg of the unfathomed dimension that was to follow-the internet.