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Chalkboard is one of the biggest inventions in terms of educational technology and it is still used in classrooms.
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The British Broadcasting Corporation started giving education on radio programs in 1920s.
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Videotapes and video recording have improved dramatically since their first days in the 1950s.
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Television was first used in education in the 1960s,
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Open University (OU) established by the British government in 1969, and television and radio programs intagrated in courses.
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PLATO was a generalized computer assisted instruction system originally developed at the University of Illinois. The Plato which is one of the most-used early computers disturbed in the US public schools.
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Software technologies (cd, uploaded computers) used in 1990s. Software, has become such an integral part of both work and daily life, it's hard to remember a world without it.
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A short history of distance learning and may explain much about the sudden popularity of MOOCs.
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Seventy million computers were connected to the Internet and social media channels have been everywhere since the early 2000s, and it has been growing. With the help of social media youtube, google, khan academy etc. began used for educational purposes.
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Slateboards technologically evolved to iPads.
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