This document discusses various media and technologies used for language teaching over time, from chalkboards and typewriters in the early 20th century, to tape recorders and language labs in the late 1920s-1940s, transistorized TVs in the 1950s-1981, computers and the internet in the 1960s digital era, and how information and communication technologies can now be used as vehicles for instruction, interaction aids, and learning resources, though good teaching remains most important.