1877 - Phonograph invented - Edison was trying to improve the telegraph transmitter when he noticed that the movement of the paper tape through the machine produced a noise resembling spoken words when played at a high speed. Experimenting with a stylus (hard-pointed instrument like a large needle) on a tinfoil cylinder, Edison spoke into the machine.
1892 - First phonograph records sold
1895 - Movies and movie theaters
1897 - Radio first sent over long distance
1919 - Shortwave radio
1920 - Technicolor invented for movies
1929 - FM radio introduced in U.S.
1930 - Jukebox marketed in U.S.
1931 - Pinball machine marketed in U.S. - Pinball machines appeared in mass, during the early 1930s as countertop machines (without legs) and they featured the characteristics created by Montegue Redgrave. In 1932, manufacturers began adding legs to their games. The term "pinball" itself as a name for the arcade game was not seen until 1936.
1931 - Electronic TV demonstrated in Britain
1941 - TV broadcast begins in U.S.
1948 - LP (long-playing) records sold in U.S.
1949 - 45 rpm (revolutions per minute) records sold in U.S.
1952 - Transistor radio invented - three USA research scientists of Bell Laboratories, Shockley, Bardeen and Brattain managed, in
December 1947, to invent a solid state device that they called the transistor. They succeeded in creating a
completely new amplifying device just by adding a second contact point to the
already popular crystal diode based on a piece of germanium crystal with a
pointed "cat's whisker" touching its surfaceBy 1953 a firm called Texas Instruments was already producing its own line of
transistors under Bell Laboratories licence.
1954 - Color TV broadcast in U.S.
1957 - Stereo phonograph introduced
1962 - Telstar satellite broadcasts TV worldwide
1962 - Video games created - In 1952, A.S. Douglas wrote his PhD degree at the University of Cambridge on Human-Computer interraction. Douglas created the first graphical computer game - a version of Tic-Tac-Toe. The game was programmed on a EDSAC vaccuum-tube computer, which had a cathode ray tube display.
1970 - VCR (videocassette recorder) marketed
1970 - CDs (compact discs) marketed
1976 - The Apple I is introduced - it was Steven Wozniak's first contribution to the personal computer field. It was designed over a period of years, and was only built in printed circuit-board form when Steve Jobs insisted it could be sold. It debuted in April 1976 at the Homebrew Computer Club in Palo Alto, but few took it seriously. The Apple I was based on the MOStek 6502 chip, whereas most other "kit" computers were built from the Intel 8080. The Apple I was sold through several small retailers, and included only the circuit board. A tape-interface was sold separately, but you had to build the case. The Apple I's initial cost was $666.66
1979 - Sony Walkman sold - In 1979, Sony began selling the popular Walkman in Japan.
1980s - Cable TV networks aired in U.S.
1981 - MTV broadcast in U.S.
1982 - Wristwatch TV introduced in Japan.
2005 - First iPod introduced
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