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  2. Clipboard - Wikipedia

    en.wikipedia.org/wiki/Clipboard

    Another early version of the clipboard, known as the "memorandum file", was invented by American inventor George Henry Hohnsbeen in 1921, for which he was granted U.S. patent 1,398,591. [2] Related to the clipboard is the Shannon Arch File, which was developed around 1877.

  3. Chipboard - Wikipedia

    en.wikipedia.org/wiki/Chipboard

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide Chipboard may refer to: ... Chipboard may refer to:

  4. Particle board - Wikipedia

    en.wikipedia.org/wiki/Particle_board

    Particleboard with veneer. Particle board, also known as particleboard or chipboard, is an engineered wood product, belonging to the wood-based panels, manufactured from wood chips and a synthetic, mostly formaldehyde-based resin or other suitable binder, which is pressed under a hot press, batch- or continuous- type, and produced. [1]

  5. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    PDF 2.0 defines 256-bit AES encryption as the standard for PDF 2.0 files. The PDF Reference also defines ways that third parties can define their own encryption systems for PDF. PDF files may be digitally signed, to provide secure authentication; complete details on implementing digital signatures in PDF are provided in ISO 32000-2.

  6. Scratch (programming language) - Wikipedia

    en.wikipedia.org/wiki/Scratch_(programming_language)

    Scratch is a high-level, block-based visual programming language and website aimed primarily at children as an educational tool, with a target audience of ages 8 to 16. [9] [10] Users on the site can create projects on the website using a block-like interface.

  7. Biscuit joiner - Wikipedia

    en.wikipedia.org/wiki/Biscuit_joiner

    Steiner opened his carpenter's shop in 1944, and, in the middle of the 1950s, while looking for a simple means of joining the recently introduced chipboard, invented the Lamello joining system. In the succeeding years there followed further developments such as the circular saw and the first stationary biscuit (plate) joining machine in 1956 ...

  8. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    256-bit AES encryption; incorporation of XFA Datasets into a file conforming PDF/A-2; improved attachment of Adobe Flash applications , video (including Flash video with H.264), audio, and other multimedia, two-way scripting bridge between Flash player and conforming applications, navigator SWF file may be loaded as an Adobe Flex 2 module or as ...

  9. Whiteboard - Wikipedia

    en.wikipedia.org/wiki/Whiteboard

    A combination between a whiteboard and a cork bulletin board Original early 1960s ad for "Plasti-slate", the first whiteboard/dry erase board invented by Martin Heit. It has been widely reported that Korean War veteran and photographer Martin Heit and Albert Stallion, an employee at Alliance, a leading flat rolled steel sheet supplier should be credited with the invention of the whiteboard in ...

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