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  2. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    A barcode or bar code is a method of representing data in a visual, machine-readable form. 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 ...

  3. Barcode printer - Wikipedia

    en.wikipedia.org/wiki/Barcode_printer

    A barcode printer is a specialized device designed to create and print barcodes, which are machine-readable codes consisting of parallel lines or a matrix of squares. These barcodes serve various purposes across different industries. Here are some common uses of barcode printers: 1.Retail Industry: Product Labeling: Barcode printers are used to ...

  4. Universal Product Code - Wikipedia

    en.wikipedia.org/wiki/Universal_Product_Code

    A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...

  5. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    RFID offers advantages over manual systems or use of barcodes. The tag can be read if passed near a reader, even if it is covered by the object or not visible. The tag can be read inside a case, carton, box or other container, and unlike barcodes, RFID tags can be read hundreds at a time; barcodes can only be read one at a time using current ...

  6. Print emails in AOL Mail - AOL Help

    help.aol.com/articles/print-emails-in-new-aol-mail

    Open the email you'd like to print. 2. Click the Print icon . - A window will appear with your message. 2. Click the Print icon again. 3. Follow the browser prompts to finish printing. Learn how to save a physical copy of messages sent to your AOL Mail account.

  7. Norman Joseph Woodland - Wikipedia

    en.wikipedia.org/wiki/Norman_Joseph_Woodland

    Co-inventor of the barcode. Norman Joseph Woodland (September 6, 1921 – December 9, 2012) was an American inventor and engineer, best known as one of the inventors of the barcode, for which he received a patent in October 1952. [1] [2] Later, employed by IBM, he developed the format which became the ubiquitous Universal Product Code (UPC) of ...

  8. Barcode technology in healthcare - Wikipedia

    en.wikipedia.org/wiki/Barcode_technology_in...

    Barcode technology in healthcare. Barcode technology in healthcare is the use of optical machine-readable representation of data in a hospital or healthcare setting. Dating back to the 1970s, there has been a continual effort among healthcare settings to adopt barcode technology. [1] In the early 2000s, published reports began to illustrate ...

  9. Barcode reader - Wikipedia

    en.wikipedia.org/wiki/Barcode_reader

    A stationary barcode scanner for a conveyor line. A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.