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1. www.britannica.com › biography › Lee-de-ForestLee de Forest | American Inventor & Radio Pioneer | Britannica

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   3 days ago · Lee de Forest was an American inventor of the Audion vacuum tube, which made possible live radio broadcasting and became the key component of all radio, telephone, radar, television, and computer systems before the invention of the transistor in 1947.

   • Nora Stanton Blatch Barney

     Nora Stanton Blatch Barney (born Sept. 30, 1883,...

   • Enrico Caruso

     Enrico Caruso (born February 25, 1873, Naples, Italy—died...

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3. www.careerpower.in › school › computerFirst Generation of Computers and their Characteristics

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   Jun 1, 2024 · The Vacuum Tubes were invented by Lee De Forest. Here is a pictorial representation of Vacuum Tubes- The first generation was the beginning of computer technology which further evolved to make computers more powerful and updated.

4. www.marinelink.com › history › de-forest-radioDe Forest Radio Telephone And Telegraph Company - MarineLink

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   Jun 8, 2024 · Dr. Lee de Forest, a distinguished electrical engineer and the foremost American contrib-utor to the development of wireless telegraphy and telephony is at the head, as president and...

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   What did Lee De Forest invent?

   • Lee de Forest (born August 26, 1873, Council Bluffs, Iowa, U.S.—died June 30, 1961, Hollywood, California) was an American inventor of the Audion vacuum tube, which made possible live radio broadcasting and became the key component of all radio, telephone, radar, television, and computer systems before the invention of the transistor in 1947.

   Lee de Forest | American Inventor & Radio Pioneer | Britannica

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   Who was Lee De Forest?

   • Lee De Forest. A poor businessman and a poorer judge of men, de Forest was defrauded twice by his own business partners. By 1906 his first company was insolvent, and he had been squeezed out of its operation.

   Lee de Forest | American Inventor & Radio Pioneer | Britannica

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   What was de Forest known for?

   • Although de Forest was bitter over the financial exploitation of his inventions by others, he was widely honoured as the “father of radio” and the “grandfather of television.” He was supported strongly but unsuccessfully for the Nobel Prize for Physics. De Forest was the son of a Congregational minister.

   Lee de Forest | American Inventor & Radio Pioneer | Britannica

   www.britannica.com/biography/Lee-de-Forest

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6. www.careerpower.in › school › computerGeneration of Computers 1st, 2nd, 3rd, 4th, and 5th

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   Jun 1, 2024 · Generation of Computer. In computers, we use the term “generation” to show the evolution of technology. Earlier, the generation term was used to distinguish the computers in terms of varying hardware but now it all together includes the hardware and software which makes up a computer system.

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7. en.wikipedia.org › wiki › Sound_filmSound film - Wikipedia

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   4 days ago · In 1919, American inventor Lee De Forest was awarded several patents that would lead to the first optical sound-on-film technology with commercial application. In De Forest's system, the sound track was photographically recorded onto the side of the strip of motion picture film to create a composite, or "married", print.

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     Lee de Forest Documentary - Hollywood Walk of Fame

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     History of Radio: How Lee De Forest, a Con Artist, Created Radio

     8 Jun 2018

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     13th January 1910: World's first public radio broadcast comes from the Met Opera in New York

     12 Jan 2021

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9. en.wikipedia.org › wiki › List_of_inventorsList of inventors - Wikipedia

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   Jun 14, 2024 · Lee de Forest (1873–1961), U.S. – Phonofilm, triode; Fe del Mundo (1911–2011), Philippines – non-electric incubator; Yuri Nikolaevich Denisyuk (1927–2006), Russia – 3D holography; Robert H. Dennard (born 1932), U.S. – Dynamic random-access memory (DRAM) Miksa Déri (1854–1938), Hungary – co-inventor of an improved closed-core ...

10. www.dewetron.com › 2021 › 12The history of measurement technology - DEWETRON

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    Jun 21, 2024 · This led, among other things, to the development of the electrical amplifier in 1906 by Lee de Forest. The first computers also relied on modified Fleming diodes. Picture of the first Fleming diode. Semiconductor technology as a revolution.