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  2. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which there are several types.

  3. Computer programming in the punched card era - Wikipedia

    en.wikipedia.org/wiki/Computer_programming_in...

    A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching holes in the card ...

  4. Comment (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Comment_(computer_programming)

    Program code is in blue. In computer programming , a comment is a programmer-readable explanation or annotation in the source code of a computer program . They are added with the purpose of making the source code easier for humans to understand, and are generally ignored by compilers and interpreters .

  5. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    On-board diagnostics. Various angles and details of a "MaxScan OE509" – a fairly typical onboard diagnostics (OBD) handheld scanner from the first decade of the 21st century. Used to connect to the SAE J1962 Data Link Connector (DLC) found in many cars of the era. On-board diagnostics ( OBD) is a term referring to a vehicle's self-diagnostic ...

  6. Adobe Acrobat - Wikipedia

    en.wikipedia.org/wiki/Adobe_Acrobat

    Acrobat Reader is the freeware version of Acrobat developed by Adobe Inc. to view, create, fill, print and format files in the Portable Document Format (PDF). It is currently available for Windows , macOS , iOS , and Android users only.

    • TI-59 / TI-58 - Wikipedia
      TI-59 / TI-58 - Wikipedia
      wikipedia.org
    • Avoid Answering Calls from These Area Codes: Scam Phone Numbers Guide
      Avoid Answering Calls from These Area Codes: Scam Phone Numbers Guide
      aol.com
  7. CueCat - Wikipedia

    en.wikipedia.org/wiki/CueCat

    CueCat. CueCat barcode scanner and interposer cables with male and female PS/2 connectors. The CueCat, styled :CueCat with a leading colon, is a cat-shaped handheld barcode reader that was given away free to Internet users starting in 2000 by the now-defunct Digital Convergence Corporation (which often styled its own name as Digital:Convergence ...