How Barcode Scanning Works

Barcode is an optical machine-readable data, which contains certain data of the product. It represents its data in proper spaced parallel line. These could be linear pattern (1D) or patterns of squares, dots (2D). At present many people are unaware about barcode scanning. With advancement in computer field, barcode scanning is an easy kind of job.

In barcode scanning, two main technologies are involved: One is the barcode and another is the barcode scanner. It uses a ‘symbology technology’, which basically represents a barcode. Following types of symbologies are available in the market: UPC-A, PDF417, Data Matrix etc.

In market, two types of barcode scanners are available: 1D and 2D. 1D barcode reader is used to read 1D barcode and they are capable to read only 1D barcode where as 2D barcode scanner can read both 1D and 2D barcode. 1D barcode scanners use a laser scanner to read the data. 2D scanning is more complex than 1D scanning hence 2-D scanner cannot read the entire range of 2-D barcodes.

Many scanners first take the picture and then decode the information by reading the image. Because of this technology, now cell phone cameras are capable to read the barcode. Apple i-phone has an application, which can read a UPC barcode.

Two main things are needed while barcode scanning. One is type of barcode symbology and another is connection of a scanner to the computer. Consideration of barcode type is necessary while scanning. All these steps make a complete barcode scanning process.

Therefore, if someone is not using barcode scanning in today’s business then he is loosing a great opportunity to build a better business. Due to present technology and the maturity of the barcode, it is very simple to implement barcode scanners into everyday work process.