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CA2007 INTRODUCTION TO NEW MEDIA AND BROADCASTING EPISODE 2 HISTORY AND EVOLUTION OF BROADCAST...
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CA2007 INTRODUCTION TO NEW MEDIA AND
BROADCASTING
EPISODE 2
HISTORY AND EVOLUTION OF BROADCAST MEDIA
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OVERVIEW
_ History and evolution of radio, television, and the internet
_ Broadcast standards
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Prior to 1300FIRE, SMOKE, BELLS,TRUMPETS, DRUMS, AND GUNS
1300 to todayFLAGS AND SEMAPHORE
1800Telegraph defined from the Greek... TELE = far GRAPHOS = write
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TELEGRAPH1837
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TELEGRAPH1837
Samuel Morse
Morse Code
dots-and-dashes
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TELEGRAPH1837
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Cyrus West Field and the Atlantic Telegraph Company constructed Transatlantic Telegraph Cable
1858
From Ireland to Newfoundland
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TELEPHONE1876
Alexander Graham Bell
“Come here, Watson.I need you.”
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James Clerk Maxwell publishedtheory of invisible waves (electromagnetic)
18651873
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RADIO WAVE
Heinrich Hertz
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RADIO WAVE
AMPLITUDEheight of wave
FREQUENCYno. of cycle of wave per second (Hz)
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WIRELESS TELEGRAPH1896
Guglielmo Marconi
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Voice was the first on the air over radio waves.
1906
Reginald Fessenden
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Lee De Forest invented the Audion, an amplifier that boost weak radio waves.
1906
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David Sarnoff invented ‘radio music box’.
1915
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During World War I1917
- All US Navy ships were equipped with radio.
- US government took control of all radio operations, in the interest of national security.
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The Navy suggest GE to buy American Marconi.
1919
Radio Corporation of America (RCA)
- GE and Westinghouse manufacture radio equipment.- RCA sell it.- AT&T build the transmitter.
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The world’s first commercial radio stationPittsburgh-based KDKA
1920
AM 1020 kHz
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Amplitude Modulation
Frequency Modulation
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30-300 kHz Low Frequencies (LF)
Short distance communication
300-3,000 kHz Medium Frequencies (MF)
AM radio
3-30 MHz High Frequencies (HF)
Police radio, amateur radio operator
30-300 MHz Very High Frequencies (VHF)
FM radio, VHF television system
300-3,000 MHz Ultra High Frequencies (UHF)
UHF television system, mobile phone
3,000-30,000 MHz Super High Frequencies (SHF)
Satellite, microwave, military radar
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1933 Edwin Armstrong demonstrated FM radio.
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Radio Golden Age
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Radio Golden Age
TELEVISION
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MOTION PICTUREEadweard Muybridge and Leland Stanford
18721877
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Willoughby Smith discovered the photoconductivity of the element selenium, providing a method for converting light/images into electrical signals.
1873
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Paul Nipkow experimented projecting motion pictures.
1884
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Charles Francis Jenkins invented mechanical television: Radiovisor.
1923
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John Logie Baird demonstrated broadcasting pictures via his Televisor.
1925
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Philo Taylor Farnsworth invented Electronic television.
1927
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Paul Nipkow experimented projecting motion pictures.
1884
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Paul Nipkow experimented projecting motion pictures.
1884
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Paul Nipkow experimented projecting motion pictures.
1884
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Vladimir Kozmich Zworykin invented the system that later was developed to color television
1930
NTSCPAL SECAM
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NTSC1953 National Television System CommitteeFrame rate: 29.97 (30) fpsFields: 59.94 (60)Lines: 525Resolution (digital conversion): 720x480 pxPixel aspect ratio: 10:11 (0.9)Transmission band: UHF/VHF
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PAL1967Phase Alternation by LineFrame rate: 25 fpsFields: 50Lines: 625Resolution (digital conversion): 720x576 pxPixel aspect ratio: 12:11 (1.067)Transmission band: UHF/VHF
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SECAM1967Séquentiel couleur à mémoire(Sequential Color with Memory)
Frame rate: 25 fpsFields: 50Lines: 625Resolution (digital conversion): 720x576 pxPixel aspect ratio: 12:11 (1.067)Transmission band: UHF/VHF
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DIGITAL TELEVISION
ANALOG
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High-Definition TelevisionEither Interlaced or Progressive ScanAspect ratio: 16x9Resolution: 1920x1080 px (1080i or 1080p)1280x720 px (720p)Transmission band: UHF/VHF
DIGITAL TELEVISION
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DVB-T Digital Video Broadcasting-Terrestrial
ATSC Advanced Television System Committee
ISDB-T Terrestrial Integrated Services Digital Broadcasting
DTMB Digital Terrestrial Multimedia Broadcasting
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DIGITAL TELEVISION
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DVB-S The Digital Video Broadcasting - Satellite
DVB-C The Digital Video Broadcasting - Cable
DVB-T The Digital Video Broadcasting - Terrestrial
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DIGITAL TELEVISION
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THE INTERNETglobal interconnection of computer networks made possible by using communication protocols
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Soviet Union launched Sputnik.This event would have a huge impact on U.S. technology, planting the seed for the Internet.
1957
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President Dwight D. Eisenhower formed the Defense Advanced Research Projects Agency (DARPA)
1958
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DARPA’s Bob Taylor built ARPANET, the forerunner of the Internet.
1968
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Queen Elizabeth sent her first e-mail message.
1976
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1976 USENET brought computer networking to the masses.
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Apple Computer introduced the Macintosh computer
1984
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The Internet was officially born, when NSFNET replaced aging ARPANET with a faster network providing 30 times more bandwidth.
1986
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Internet service providers (ISPs), such as America
Online (AOL), gave consumers access to the Internet.
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Digitalization
MEDIA CONVERGENCE
speak digital language
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Broadcasting in Thailand
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1907 Telegraph was used in Royal Thai Navy activities.
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1913 King Rama VI presided over the first telegraph station in Thailand.
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1927 First radio broadcasting demonstration in Thailand
Prince Purachatra Jayakara
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1930 First official radio broadcasting station in Thailand
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1955 First television station, TTV(Channel 4)
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1967 First color television station: Channel 7
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2014 Thailand switched to Digital Television
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Wired telegraph and telephone
Wireless telegraph
AM-FM radio
Modern radio
Mechanical television
Electronic television
Digital television
The birth of the Internet
The rise of the Internet
Web 2.0
Social network
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REFERENCES:
Dominick, Joseph R., Messere, Fritz and Barry L. Sherman. Broadcasting, Cable, the Internet, and Beyond, 5th edition. New York: Mcgraw-Hill, 2004.
Hinviman, Somsuk, et. al. Fundamental of Radio and Television, 2nd edition. Bangkok: Thammasat University Press, 2014.
www.apple.comwww.clivemaxfield.comwww.hardwarezone.com.sgwww.journaldunet.comwww.nadcomm.comwww.switched.com/