Normally most of them are aware about the barcode and do see them on regular basis on some or other products. But it is also interesting thing to know more about the bar code, its system and what’s its use and how does it works.
What is barcode?
Barcode is an optical, machine-readable code in the form of numbers and a pattern of parallel lines of varying widths. Barcode is used for many tasks.
There are two types of barcodes, viz. a. One dimensional (1D) barcode, b. Two dimensional (2D) barcode.
There are two type of 1D barcode : UPC code and EAN Code.
UPC Code: UPC barcode are used to label and scan consumer goods at points-of-sale. It has two variations, UPC – A variation (encodes 12 numerical digits) and UPC-E variation (encodes 6 numerical digits).
EAN Code: EAN Codes are also used to label consumer goods worldwide for point-of-sale scanning. It has five variations – EAN-13, EAN-8, JAN-13, ISBN, ISSN.
There are three types of two dimensional (2D) barcode, viz., QR Code, Datamatrix Code, PDF417 and AZTEC
QR Code: QR code is a machine-readable code consisting of an array of black and white squares and 2D matrix barcodes with a strong consumer focus, often used in tracking and marketing such as advertisements, magazines, and business cards.
Datamatrix Code: Datamatrix code is a two-dimensional barcode consisting of black and white “cells” or modules arranged in either a square or rectangular pattern, also known as a matrix. The information to be encoded can be text or numeric data.
PDF417 : PDF417 is a stacked linear barcode symbol format used in a variety of applications, primarily transport, identification cards, and inventory management.
AZTEC : Aztec Code is a two-dimensional matrix symbology containing dark and light square data modules, and is used for small item marking applications using a wide variety of printing and marking technologies.
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