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  2. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.

  3. List of writing systems - Wikipedia

    en.wikipedia.org/wiki/List_of_writing_systems

    Writing systems are used to record human language, and may be classified according to certain common features.. The usual name of the script is given first; the name of the languages in which the script is written follows (in brackets), particularly in the case where the language name differs from the script name.

  4. Potato chip - Wikipedia

    en.wikipedia.org/wiki/Potato_chip

    At first, potato chips were packaged in barrels or tins, which left chips at the bottom stale and crumbled. In the 1920s, Laura Scudder, [31] [32] [33] an entrepreneur in Monterey Park, California, started having her workers take home sheets of wax paper to iron into the form of bags, which were filled with chips at her factory the next day ...

  5. Musical notation - Wikipedia

    en.wikipedia.org/wiki/Musical_notation

    Braille music is a complete, well developed, and internationally accepted musical notation system that has symbols and notational conventions quite independent of print music notation. It is linear in nature, similar to a printed language and different from the two-dimensional nature of standard printed music notation.

  6. List of creators of writing systems - Wikipedia

    en.wikipedia.org/wiki/List_of_creators_of...

    W. John (or John W.) Weilgart - Austrian-born American psychoanalyst and philosopher; creator of the philosophical language aUI and its writing system. John Wilkins - English academic. Invented the so-called 'real character' as a writing system for a proposed Philosophical language in 1668. John Willis - English, invented a system of shorthand ...

  7. History of music publishing - Wikipedia

    en.wikipedia.org/wiki/History_of_music_publishing

    A page from the Mellon Chansonnier (c.1470), prepared for the wedding of Catherine of Aragon. Music publishing is the business of creating, producing and distributing printed musical scores, parts, and books in various types of music notation, while ensuring that the composer, songwriter and other creators receive credit and royalties or other payment (where applicable).

  8. Sheet music - Wikipedia

    en.wikipedia.org/wiki/Sheet_music

    Hymn-style arrangement of "Adeste Fideles" in standard two-staff format (bass staff and treble staff) for mixed voices Tibetan musical score from the 19th century. Sheet music is a handwritten or printed form of musical notation that uses musical symbols to indicate the pitches, rhythms, or chords of a song or instrumental musical piece.

  9. Shape note - Wikipedia

    en.wikipedia.org/wiki/Shape_note

    The four syllable variation of Guido's original system was prominent in 17th century England, and entered the US in the 18th century. [2] Shortly afterward, shapes were invented to represent the syllables. (see below). The other important systems are seven-shape systems, which give a different shape and syllable to every note of the scale.