Brief History of Educational Technology By ProfesoraMason Period: Mar 17, 1930 to Mar 17, 1980 16mm film used in school Mar 17, 1970 Audio-conferencing started to be used for educational purposes Dec 17, 1978 Computer technology used as teaching machines in education Mar 17, 1985 Internet based courses appeared Period: Mar 17, 1995 to Mar 17, 2014 Online learning transforms learning