-
1100
Boards
Slate boards were used in India and blackboards were started to be used in 18th century. -
The First Formal Correspondence
Improvements in transport infrastructure in the 19th century, and in particular the creation of a cheap and reliable postal system in the 1840s, led to the development of the first formal correspondence education, with the University of London offering an external degree program by correspondence from 1858. -
Broadcasting
The British Broadcasting Corporation (BBC) started broadcasting educational radio programs for schools in the 1920s. The first adult education radio broadcast from the BBC in 1924 was a talk on Insects in Relation to Man. -
Projectors
The U.S. Army began using overhead projectors for studying at the end of World War Two. With their use, the use of projectors began to be used for teaching purposes. -
Television
Television was first used in education in the 1960s, for schools and for adult education. -
The Use of Print and Audio Conferencing
The Open University altered the use of print for teaching through specifically planned.
As a result of the high cost of analog telephone calls for multiple users, the standard telephone system rarely used as an educational tool, and audio conferencing were started to use to supplement the other media since the 1970s. -
Video Conferencing
Video-conferencing using dedicated cable systems and dedicated conferencing rooms have been used since the 1980s. Also, satellite broadcasting started to become available in the 1980s. -
Software
Overhead projectors were replaced by electronic projectors and presentational software such as Powerpoint. Also in 1990s, the first online courses began. -
Video Compression Technology
In the early 2000s, video compression technology and low-cost video servers started to take place. Besides, The Massachusetts Institute of Technology (MIT) began making its recorded lectures available to the public, free of charge, via its OpenCourseWare project. -
Social Media
YouTube started in 2005 and was bought by Google in 2006. YouTube is largely being used for short educational clips that can be downloaded and integrated into online courses. The Khan Academy began using YouTube in 2006 for recorded voice-over lectures using a digital blackboard for equations and illustrations. -
Introduction of Lecture Capture Systems
The development of video compression technology and relatively low-cost video servers in the early 2000s caused the introduction of lecture capture systems for recording and streaming classroom lectures.
