Educational Technology Using Audio TimeLine By ksm.coll@gmail.com 1920 Commercial Radio Broadcasts begin 1920 Records and Record Players enter homes in the 1920s 1925 Radios in homes become widespread 1927 Talkies debut in cinemas 1930 The Ohio School of Air begins broadcasting educational programming 1945 Magnetic Tape Recorder brought to U.S. by returning WWII Veterans 1950 Televisions widely adopted for home use 1979 Betamax and VHS video cassette recorders enter homes 1985 Microcomputers available for home use 1993 World Wide Web introduced 1995 Interactive audiovisual games available for home PCs 2001 Ipod released 2005 Apple supports Podcasts 2007 Iphone released 2020 Covid-19 coincides with Podcast Boom
