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  2. List of digital television deployments by country - Wikipedia

    en.wikipedia.org/wiki/List_of_digital_television...

    National Television Company in Morocco started DVB-T based digital TV deployment in February 2007. [7]Digital TV is now available in the following cities and their regions: [8] Casablanca, Benslimane, Settat, Nouaceur, Mediouna, Mohammedia, Rabat, Salé, Skhirat-Temara, Kenitra, Sidi Kacem, Khemisset, Meknes, Fes, Oujda, Tanger and Marrakech.

  3. History of television - Wikipedia

    en.wikipedia.org/wiki/History_of_television

    Family watching TV, 1958. The concept of television is the work of many individuals in the late 19th and early 20th centuries. The first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that could be reconstructed at a receiver back into an approximation of the original image.

  4. History of the camera - Wikipedia

    en.wikipedia.org/wiki/History_of_the_camera

    The digital market segmented into different categories, Compact Digital Still Cameras, Bridge Cameras, Mirrorless Compacts and Digital SLRs. Since 2003, digital cameras have outsold film cameras [ 52 ] and Kodak announced in January 2004 that they would no longer sell Kodak-branded film cameras in the developed world [ 53 ] – and in 2012 ...

  5. Digital television - Wikipedia

    en.wikipedia.org/wiki/Digital_television

    Changes in signal reception from factors such as degrading antenna connections or changing weather conditions may gradually reduce the quality of analog TV. The nature of digital TV results in a perfectly decodable video initially, until the receiving equipment starts picking up interference that overpowers the desired signal or if the signal ...

  6. HD Radio - Wikipedia

    en.wikipedia.org/wiki/HD_Radio

    Best Buy started selling the Insignia NS‑HD01, a house brand portable unit on 12 July 2009. It was the second portable HD receiver to come to the general market and featured FM‑only playback and a non-removable rechargeable battery which charges via mini USB.

  7. Zenith Electronics - Wikipedia

    en.wikipedia.org/wiki/Zenith_Electronics

    Zenith introduced the first portable radio in 1924, [5] the first mass-produced AC radio in 1926, [5] and push-button tuning in 1927. [5] It added automobile radios in the 1930s with its Model 460 , promoting the fact that it needed no separate generator or battery, selling at US$59.95. [ 6 ]

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