Midterm Flashcards
What did Samuel Morse do?
Co-inventor of the Morse code.
What did Lee Deforest do?
Invented the Audion.
What did Reginald Fessenden do?
Performed pioneering experiments in radio, including the first radio transmissions of voice and music.
What did Edwin Armstrong do?
Called “the most prolific and influential inventor in radio history”. Invented the regenerative circuit, the super-regenerative circuit, and the superheterodyne receiver. He also invented the modern frequency modulation (FM) radio transmission.
What did Gugliermo Marconi do?
Known as the father of long distance radio transmission and for his development of Marconi’s law and a radio telegraph system.
What did David Sarnoff do?
Led the Radio Corporation of America (RCA) in various capacities and NBC until 1970.
What did James Maxwell do?
Formulated the classical electromagnetic theory.
What did Heinrich Hertz do?
Clarified and expanded James Clerk Maxwell’s electromagnetic theory of light.
What did Frank Conrad do?
A radio broadcasting pioneer who worked as the Assistant Chief Engineer for the Westinghouse Electric Corporation in Pittsburgh, Pennsylvania.
What did Vladimir Zworykin do?
Invented a television transmitting and receiving system employing cathode ray tubes.
What did William Paley do?
He was the chief executive who built Columbia Broadcasting System (CBS) from a small radio network into one of the foremost radio and television network operations in the United States.
What is the Kinescope?
A television picture tube.
A film recording of a television broadcast.
What is Videotape?
Magnetic tape for recording and reproducing visual images and sound.
What are NBC Red and NBC Blue?
The two original radio networks of the National Broadcasting Company, and the first two commercial radio networks in the United States.
What is FM?
Frequency Modulation
What are FM Subcarriers?
Separate analog or digital signal carried on a main radio transmission allowing the station to broadcast additional services as part of its signal.
What did Fred Rogers do?
American educator, Presbyterian minister, songwriter, author, and television host.
What is Telstar?
The name of various communications satellites.
What is CATV?
Community antenna television (i.e., cable television).
What did Frieda Hennock do?
The first female Federal Communications Commissioner (FCC).
What is Toll Broadcasting?
Precursor to commercial radio.
What is E.N.G.?
Electronic News Gathering