What is a Barcode?
A barcode is a square or rectangular image consisting of a series of parallel black lines and white spaces of varying widths that can be read by a scanner. Barcodes are applied to products as a means of quick identification. They are used in retail stores as part of the purchase process, in warehouses to track inventory, and on invoices to assist in accounting, among many other uses.
Types of barcodes
EAN-13. The European Article Numbering System (EAN) is a superset of U.P.C. EAN13 consists of 13 numbers.
UPC-A. The Universal Product Code (UPC) barcode is used in the retail industry. UPC-A consists of 12 numbers.
EAN-8. The European Article Numbering System (EAN) is a superset of U.P.C. EAN-8 and consists of 8 digits for small packages.
QR. QR-Code is an efficient, two-dimensional (2D) barcode symbology that allows easy encoding of MECARD data including phone numbers and web URLs.
ITF. Interleaved 2 of 5 (ITF) is a numeric-only barcode used for encoding pairs of numbers in a high density barcode format similar to code 128 character set C.
Code 39. The Code 39 barcode is the easiest to use of alpha-numeric barcodes and is designed for character self-checking, thus eliminating the requirement for check character calculations.
Code 128. A very effective, high-density symbology which permits the encoding of alphanumeric data. The symbology includes a checksum digit for verification, and the barcode may also be verified character-by-character verifying the parity of each data byte.
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