Milestones: Development of Radio and TV

Milestones in the development of radio and television

Invention Inventor Nationality Year R T V A

radio transmitter Guglielmo Marconi Italian 1894 X Sent radio message, made bell ring

triode valve Lee De Forest American 1907 X Amplified radio signals

scanning system John Logie Baird Scottish 1925 X Transmitted 1st pictures human face

transistor radio Sony Corporation Japanese 1952 X Small enough to carry in pocket

video recorder Ampex Corporation American 1958 X TV pictures recorded on magnetic tape

rotating playback head Alexander Pontioff American 1958 X More information could be kept on a video tape

frequency modulation (FM) Edwin Armstrong American 1933 X Improved radio reception

video home system

(VHS)
JVC Company Japanese 1970 X Most successful home video cassette recording system.

satellite broadcasting Sky TV English 1989 X 1st commercial satellite broadcasting

phonograph Thomas A. Edison American 1877 X 1st machine to record and play back sound on wax cylinders

gramophone Emile Berliner German 1888 X Played flat gramophone records at 78 RPM

long playing records Columbia Record Company American 1946 X Sound recordings rotated at 33 1/2 RPM

walkman Sony Corporation Japanese 1979 X Small, portable tape and later CD players

digital audio discs (CD's) Philips Company Dutch 1982 X Long playing records replaced by CDSounds stored in digital code on small compact discs.

cassette recorder Philips Company Dutch 1963 X Recorded sound on a cassette and played back in a compact machine

stereo records
Audio Fidelity Co. American 1958 X Sound recorded on two channels. Recording, needed 2 speakers for playback. At first speakers were very large.

Radio station
KDKA American 1921 X 1st radio station in the world to broadcast to the public.

R = radio ; T = television; V =video; A = audio

To find out about how radio works, go to www.brainpop.com

Acknowledge this source in your bibliography like this:
Milestones in the development of radio and television (2000). [Online], Available: www.kidcyber.com.au

back to Technology and Inventions

checked and updated February 2005

Invention	Inventor	Nationality	Year	R	T	V	A
radio transmitter	Guglielmo Marconi	Italian	1894	X				Sent radio message, made bell ring
triode valve	Lee De Forest	American	1907	X				Amplified radio signals
scanning system	John Logie Baird	Scottish	1925		X			Transmitted 1st pictures human face
transistor radio	Sony Corporation	Japanese	1952	X				Small enough to carry in pocket
video recorder	Ampex Corporation	American	1958			X		TV pictures recorded on magnetic tape
rotating playback head	Alexander Pontioff	American	1958			X		More information could be kept on a video tape
frequency modulation (FM)	Edwin Armstrong	American	1933	X				Improved radio reception
video home system (VHS)	JVC Company	Japanese	1970			X		Most successful home video cassette recording system.
satellite broadcasting	Sky TV	English	1989			X		1st commercial satellite broadcasting
phonograph	Thomas A. Edison	American	1877				X	1st machine to record and play back sound on wax cylinders
gramophone	Emile Berliner	German	1888				X	Played flat gramophone records at 78 RPM
long playing records	Columbia Record Company	American	1946				X	Sound recordings rotated at 33 1/2 RPM
walkman	Sony Corporation	Japanese	1979				X	Small, portable tape and later CD players
digital audio discs (CD's)	Philips Company	Dutch	1982				X	Long playing records replaced by CDSounds stored in digital code on small compact discs.
cassette recorder	Philips Company	Dutch	1963				X	Recorded sound on a cassette and played back in a compact machine
stereo records	Audio Fidelity Co.	American	1958				X	Sound recorded on two channels. Recording, needed 2 speakers for playback. At first speakers were very large.
Radio station	KDKA	American	1921	X				1st radio station in the world to broadcast to the public.