DEVC30 LONG EXAM

• Pantelegraph


  A system of sending and receiving images over long distances by means of telegraph
• The pantelegraph was the first prototype of a fax machine
• Willoughby Smith and Joseph May's experiment with selenium and light


  1862
• Willoughby Smith and Joseph May's experiment

  • They accidentally discover that more electricity flows through selenium in light than it does in the dark
  • Gave future inventors a way of transforming images into electrical signals
• Alexander Bell discovers voice transmission


  1873
• Nipkow Disk


  • Gave television its first practical means for transmitting pictures
  • Permits the image to be broken up into elements that could be transmitted as electrical impulses
• Paul Nipkow's Nipkow Disk (scanning device)


  1884
• Nipkow Disk


  • Presented TV with the instrument which had the greatest survival value of all mechanical scanning devices
• First motion picture system using film and camera

  1889
• William Kennedy Laurie Dickson, Thomas Edison's assistant


  • Devised a crude, motor-powered camera that could photograph motion pictures—The Kinetograph
  • Led to emergence of motion pictures in the 1890s
• Kodak's first motion picture film for projection

  1896
• Cathode ray tube


  • First cathode ray tube scanning device invented by the German scientist Karl Ferdinand Braun
  • Electronic television - based on the development of the cathode ray tube—CRT—the picture tube found in modern television sets
• First use of the word 'television'


  1900
• First International Congress of Electricity at the World's Fair in Paris


  • Russian scientist Constantin Perskyi made the first known use of the word "television."
• Alan Swinton proposed a TV system with a cathode ray tube as receiver


  1907
• Vladimir Zworykin's iconoscope and kinescope (a crude TV system)

  1923
• Vladimir Zworykin


  • Finished perfecting the iconoscope, a camera tube in which a beam of high-velocity electrons scans a photoemissive mosaic
  • Changed the conception of the television to an all-electric device, replacing the older mechanical model
• Charles Jenkins' first silhouette pictures

  1925
• Charles Jenkins


  • Pioneer of early cinema technology
  • Transmitted moving silhouette images for witnesses in 1923
  • Publicly demonstrated synchronized transmission of silhouette pictures and sounds
• First public demonstration of mechanical TV

  1926
• Scotsman John Logie Bard


  • Demonstrated a working television system
  • Used mechanical picture scanning with electronic amplification at the transmitter and at the receiver
• Sound and colored TV

  1928
• Philo Farnsworth's electronic scanning system for home TV viewing

  1930
• Philo Farnsworth


  • Father of television
  • First inventor to transmit a television image comprised of 60 horizontal lines
  • Produced an all-electronic television image using his wife, Pem, as the first human subject to be transmitted on television
• Start of regular TV broadcasts

  1939
• Peter Goldmark's refined color TV system


  1940
• Peter Goldmark


  • Watched Gone with the Wind; impressed by the impact of color
  • Mechanically scanned color on TV already done, but not on high definition electronic TV
  • Demonstrated live color pickup on December 2, 1940
• Cable TV begins in the US

  1948
• Cable TV


  • Originated almost simultaneously in Arkansas, Oregon and Pennsylvania in 1948 to enhance poor reception of over-the-air television signals in mountainous or geographically remote areas
• Colored TV broadcasting


  1958
• Colored TV broadcasting


  • By 1958, 350,000 colored TV sets in the US, manufactured mostly by RCA
  • NBC – the only network pushing color programming
• History of TV in the Philippines - UST's demo of a home-made receiving set

  1950
• History of TV in the Philippines - Feati University 's experimental TV station

  1952
• History of TV in the Philippines - First official four-hour show over DZAQ -TV Channel 3

  1953
• History of TV in the Philippines - ABS-CBN became first radio -TV network


  1957
• History of TV in the Philippines - First TV live coverage of Apollo 11


  1969