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  2. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    PDF was developed to share documents, including text formatting and inline images, among computer users of disparate platforms who may not have access to mutually-compatible application software. [2] It was created by a research and development team called Camelot, [3] which was personally led by Warnock himself.

  3. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    Linearized PDF files (also called "optimized" or "web optimized" PDF files) are constructed in a manner that enables them to be read in a Web browser plugin without waiting for the entire file to download, since all objects required for the first page to display are optimally organized at the start of the file. [27]

  4. History of television - Wikipedia

    en.wikipedia.org/wiki/History_of_television

    A television set, also called a television receiver, television, TV set, TV, or telly, is a device that combines a tuner, display, and speakers for the purpose of viewing television. Introduced in the late 1920s in mechanical form, television sets became a popular consumer product after World War II in electronic form, using cathode ray tubes .

  5. Alan Emtage - Wikipedia

    en.wikipedia.org/wiki/Alan_Emtage

    Alan Emtage (born November 27, 1964) is a Bajan-Canadian computer scientist who conceived and implemented the first version of Archie, a pre-Web Internet search engine for locating material in public FTP archives. It is widely considered the world's first Internet search engine.

  6. RCA - Wikipedia

    en.wikipedia.org/wiki/RCA

    RCA Victor began selling the first all-electric Victrola in 1930 and in 1931 the company attempted to revitalize record sales with the introduction of 33 1 ⁄ 3 revolutions-per-minute (rpm) long play records, which were a commercial failure during the Great Depression, partly because the Victrolas with two speed turntables required to play ...

  7. Phonograph - Wikipedia

    en.wikipedia.org/wiki/Phonograph

    Modern turntables have also been released featuring Bluetooth technology to output a record's sound wirelessly through speakers. [87] Sony have also released a high-end turntable with an analog-to-digital converter to convert the sound from a playing record into a 24-bit high-resolution audio file in DSD or WAV formats. [93]

  8. Telefunken - Wikipedia

    en.wikipedia.org/wiki/Telefunken

    Konstanz: Computer technology, letter sorting systems, character recognition technology, air traffic control systems, studio tape decks, cash dispensing machines; Offenburg: Long-distance communications technologies; Osterode am Harz (former Kuba-Imperial plant): Videocassette recorder; Ulm, Danube valley: Television picture tubes

  9. Dual (brand) - Wikipedia

    en.wikipedia.org/wiki/Dual_(brand)

    Dual turntables Made in Germany are manufactured on the same traditional product line. They are easy to identify with the manufacturing code beginning with CS xxx. [2] Dual DGC GmbH (Germany) sells mostly rebranded consumer electronics made in Far East, including turntables (production code DT xxx). DGC products are exclusively sold in Europe. [5]