A barcode is an optical, machine-readable, representation of data; the data usually describes something about the object that carries the barcode. Originally barcodes systematically represented data by varying the widths and spacings of parallel lines and may be referred to as linear or one-dimensional (1D). Later two-dimensional (2D) codes were developed, using rectangles, dots, hexagons and other geometric patterns in two dimensions, usually called barcodes although they do not use bars as such. Barcodes were initially scanned by special optical scanners called barcode readers. Later application software became available for devices that could read images, such as smartphones with cameras. Barcodes are geometric patterns, usually vertical lines, which are used to scan and track property or goods. Barcodes can be used to keep track of retail inventory, or they can be used privately to code and track collections or goods.
Request an ISBN identification number for your product or company. The ISBN number can be requested at ISBN.org. You can request a single ISBN, a publisher block of ISBN numbers or extra publisher ISBN numbers at this site. You will request the ISBN from an organization called Bowker by verifying your business. They will send you the file and you can place the barcode on the back of the book or DVDs packaging. Go to createbarcodes.com to generate a barcode online. If you are creating barcodes for private use, such as collection cataloging, then decide on a letter or number plan to list your collection. Assign a name or number series to each product and type each series into the BarcodesInc website to generate private barcodes. Use the barcode by placing the image on a cover design for your product. Print it and tape or glue it onto your inventory items for personal use. Go to IDautomation.com. Choose the link on the homepage that says Font Tools. Find Microsoft Office Macros & VBA for Excel, Access & Word. Click the Download button. Open the zip file after it has downloaded. Save the extracted files. Open Microsoft Excel. Click on the Tools menu in the upper horizontal toolbar. Scroll down to Macro. Select Visual Basic Editor. Find the macro file called IDautomationvba.bas. Open it in the browser. Microsoft Excel will add the file to a Modules folder. Return to a blank workbook. To test out your barcode, type a number into a cell A1, to serve as your first barcode. In the cell next to it, you will type the function that gives you the barcode. Type =Code128(A1) into the cell B2. Click Enter after you have completed the typing to generate your encoded data. Select cell B2. Go to your font list. Scroll down until you find the list of ID automation fonts. Click on 1 of these fonts to generate your barcode. The barcode should appear in B2. Paste them into product cover design or print them out and tape them to your products.