Common Sense Of Barcoded Cards

Barcode card records information with a set of rules, and air and its corresponding bar code characters , the symbol of common bar code is printed by black bars and white.When the light shines on the bar code symbol, the black bars and white space produce a strong contrast to the use section, and then read information according the different light reflectance space.

Barcoded Cards divide two kinds:One-dimensional bar code and two-dimensional code. One-dimensional codes are more commonly used. For example, a daily commodities packaging is one-dimensional bar code on the code. It can only store a small amount of information by this code and obtain the data through computer networks. Two-dimensional code is developed in recent years, and it can store more information in a limited space, including text, image, fingerprint, signature, etc.What is more,Two-dimensional code can be used from the computer.

Making Barcode card is simple.Ordinary bar code can be printed or copied in accordance with certain requirements with a low cost, but it's reader device (especially two-dimensional code reader device) is more expensive. Different form magnetic card and IC card, bar code card information can not be rewritten. Poor safety performance, Ununified standard limits its application.