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  2. Oi (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Oi_(telecommunications)

    Oi Fixo (landline service, formerly Telefone Telemar) Oi Móvel (mobile service, cornerstone of the Oi brand) Oi Velox (ADSL, 3G formerly Velox) Oi Internet (ISP) 31 (long-distance and international calling) Oi Wi-Fi (Wi-Fi access, at home or via hotspots) Oi TV (DTH pay TV) Oi Voip (Voice over IP) In 2010, Portugal Telecom acquired 22.4% of Oi ...

  3. Fiber-optic communication - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_communication

    Digital predistortion counteracts the degrading effects and enables Baud rates up to 56 GBd and modulation formats like 64-QAM and 128-QAM with the commercially available components. The transmitter digital signal processor performs digital predistortion on the input signals using the inverse transmitter model before sending the samples to the DAC.

  4. File:Mapa de cobertura da Oi Fixo.svg - Wikipedia

    en.wikipedia.org/wiki/File:Mapa_de_cobertura_da...

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  5. Oi! The Album - Wikipedia

    en.wikipedia.org/wiki/Oi!_The_Album

    Oi! The Album is a 1980 Oi! compilation album, released in 1980 by EMI , then re-released by Captain Oi! and Cleopatra Records on CD in later years. It was conceived and compiled by then Sounds columnist Garry Bushell who had coined the phrase "Oi!"